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= 046 Special coded dates =
 
= 046 Special coded dates =
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'''Généralités'''
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Best practice: When encoding date information, give the fullest information about the date that is readily available (the date in field 046 may be more precise than a date used in the 100 subfield $d). When revising existing authority records, record dates in field 046 even if the heading itself does not have dates in 100 subfield $d, when the information is readily available.
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When recording dates in field 046, use the Extended Date Time Format (EDTF) schema in all cases except for centuries; supply dates using the pattern yyyy, yyyy-mm, or yyyy-mm-dd. See date table in LAC-BanQ PS 9.3.1.3.
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'''Examples :'''
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<pre style="font-family:courier new;">
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046 ## $f 1884-10-11 $g 1962-11-07 $2 edtf
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100 1# $a Roosevelt, Eleanor, $d 1884-1962
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670 ## $a When you grow up to vote, 1932 : $b p. de t. (Eleanor Roosevelt (Mrs. Franklin D. Roosevelt))
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670 ## $a Wikipédia, consultée le 21 juillet 2010 $b (Eleanor Roosevelt; Anna Eleanor Roosevelt; née le 11 octobre 1884 à Manhattan, à New York; morte le 7 novembre 1962)
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</pre>
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<pre style="font-family:courier new;">
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046 ## $s -0199~ $2 edtf
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100 0# $a Hellanicus $c (Grammairien), $d environ 200 av. J.-C.
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670 ## $a Brill's new Pauly, consulté le 2 août 2011 $b (Hellanicus; grammairien d'Alexandrie; environ 200 av. J.-C.)
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</pre>
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<pre style="font-family:courier new;">
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046 ## $f 1946-06 $2 edtf
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100 1# $a Vickers, Roy Henry, $d 1946-
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670 ## $a Solstice, c1988 : $b p. de t. (Roy Henry Vickers) jaquette (artiste amérindien; né en juin 1946 à Greenville, Colombie-Britannique)
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</pre>
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<pre style="font-family:courier new;">
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046 ## $k 1981 $2 edtf
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100 1# $a Allende, Isabel. $t Casa de los espíritus
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670 ## $a Cox, Karen Castellucci. Isabel Allende, 2003 : $b p. 4-5 (en 1981 Allende a commencé à écrire une version romancée des histoires qu'elle avait entendues dans son enfance, qui a été publiée en Espagne en 1982)
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</pre>
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When recording a century in the 046 field, use the first two digits of the hundred year span (e.g., use “16” to represent the 17th century, 1600–1699).
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'''Example :'''
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<pre style="font-family:courier new;">
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046 ## $s 17
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100 1# $a Turner, Elizabeth, $d activité 18e siècle
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670 ## $a Cohen, A.I. Int'l encycl. of women composers, 2nd ed. $b (Turner, Elizabeth, compositrice anglaise du 18e siècle)
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</pre>
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Note that the 1st century A.D. is represented by value “00” and B.C. centuries have a hyphenminus before the digits (e.g., “-04” for the 5th century B.C.). An approximate century (e.g., active
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approximately 12th century) cannot be recorded in the 046 field.
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'''Subfield $2 – Source of date scheme'''
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Always add subfield $2 edtf except after a century.
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'''Subfield $s – Start period, and $t – End period'''
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For instructions on using $s and $t for start and end periods in fields 368, and 370-376, see the instructions provided in the 373 field.
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'''Subfield $u – Uniform Resource Identifier and Subfield and Subfield $v – Source of information'''
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The following represents PFAN practice on recording sources of information in $u and $v in fields where they are defined, and/or in field 670:
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1.670s must be used to support information used as part of a heading in 1XX and 4XX fields.
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2.For fields 046, 368, 370-378, and 381:
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a.use of $v is optional if the same information/source is already cited in the 670
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b.use $v if the information/source is not cited in a 670
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c.use of $u is optional, and should always be preceded by $v
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Use a 670 field if needed to justify information recorded in other fields for which subfields $u and/or $v are not defined or defined differently.
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'''Subfield $v – Source of information'''
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Follow the same basic citation principles when recording data in subfield $v (Source of information) of fields 046, 368, 370-378, and 381 that currently apply to field 670 subfield $a (Source citation).
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Supply specific citation information (page number, sub-page of website) in subfield $v if, in the cataloger's judgment, this greater specificity is needed to find the information within the source cited.
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If the information in fields 046, 368, 370-378, and 381 is in the same form as found in the source, there is no need to cite usage information. If the information recorded in those fields is in a different form from that in the source, use 670 $b (Information found).
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'''For tangibles sources:'''
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If the information was derived from a tangible source (e.g., a print book, removable digital media) subfield $v should contain sufficient information for a cataloger to find the item cited in a catalog
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or bibliographic database. This can usually be limited to title proper and imprint or date. If that combination is not unique, the title citation may be preceded by the creator’s name
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'''For online resources:'''
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Provide information sufficient to find the resource via a search engine. Include either title and publication date (if it is a formally-published resource, such as an e-book) or a suitable description of the
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document and date accessed (for a less formal resource). Optionally include subfield $u.
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'''Example :'''
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<pre style="font-family:courier new;">
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100 1# $a Lazzarini, Sérgio G.
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372 ## $a Relations industrielles $2 rvm $v Lazzarini, Sergio G. CV-English, consulté le 22 février 2012 $u http ://www.sergiolazzarini.insper.edu.br/indexelazza.html
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670 ## $a Capitalismo de laçeos, 2011 : $b page de titre (Sérgio G. Lazzarini)
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</pre>
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[2021-02-19]
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<br>[[#toc|''Return to Table of Contents'' <big>&#11165;</big>]] &nbsp;|&nbsp; [[PFAN_-_Name_Authority_Manual_-_MARC_21_Supplement#046_Special_Coded_Dates|''Supplement'' <big>⮞</big>]]
 
<br>[[#toc|''Return to Table of Contents'' <big>&#11165;</big>]] &nbsp;|&nbsp; [[PFAN_-_Name_Authority_Manual_-_MARC_21_Supplement#046_Special_Coded_Dates|''Supplement'' <big>⮞</big>]]

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