Line 99: |
Line 99: |
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| |670 | | |670 |
− | |Supply to cite the resource catalogued and to justify the authorized access point, including additions that are part of the authorized access point, variant access points and certain identification elements. | + | |Supply to: |
| + | * cite the resource catalogued; |
| + | * justify all elements for the authorized access point and variant access points, including additions that are part of the access points; |
| + | * justify the Information recorded in the 046, 3XX, or 678 field, when subfield $v is not defined to record a source of information or is not used |
| + | * justify related access points that express relationships (fields 5XX). |
| + | |
| + | ''Note:'' Subfield $v may be used in place of field 670 to justify information recorded in fields 046 and 3XX when it has been defined for this purpose in these fields. |
| + | |
| + | ''Exceptions:'' It is not necessary to add 670 fields to justify references in the following cases: |
| + | * references justified by instructions or policy statements only, usually because the reference is derived from inverting, shortening, etc., the authorized access point or giving a substitute form of the access point; |
| + | * references made on the basis of the cataloger's awareness of different romanizations or orthographies; |
| + | * name/title cross-references derived from the work being cataloged, from other works cataloged under the same authorized access point, or from information in standard reference sources; |
| + | * references to predecessor/successor names of corporate bodies reflecting changes due to national or orthographic reform, |
| + | * references to changes in names of government bodies due to an official language change, or changes involving only a parent body to which the body being established is subordinate. |
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| |675 | | |675 |