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no edit summary
NACO participants are no longer required to record linking references from pre-AACR2 headings found on bibliographic records.
NACO participants are no longer required to record linking references from pre-AACR2 headings found on bibliographic records.
References from former authorized access points are recorded with the following subfield: :
References from former authorized access points are recorded with the following subfield: '''4XX $w nne'''
4XX $w nne
This indicates that the cross-reference was formerly a fully established, valid AACR2 or RDA access point and its form is valid under RDA. The 4XX must match the former 1XX in the record.
This indicates that the cross-reference was formerly a fully established, valid AACR2 or RDA access point and its form is valid under RDA. The 4XX must match the former 1XX in the record.
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A reference from a former authorized access point that is not valid in form under RDA, e.g., because it contains an abbreviation that is no longer allowed, is recorded with the following subfield:
A reference from a former authorized access point that is not valid in form under RDA, e.g., because it contains an abbreviation that is no longer allowed, is recorded with the following subfield: '''4XX $w nnea'''
4XX $w nnea
The ending value “a” in subfield $w nnea causes the reference to be suppressed and not displayed in most systems.
The ending value “a” in subfield $w nnea causes the reference to be suppressed and not displayed in most systems.
410 2# $a Nations Unies. $b Comisión de Derecho Internacional <br>
410 2# $a Nations Unies. $b Comisión de Derecho Internacional <br>
410 2# $a Naciones Unidas, Comisión de Derecho Internacional <br>
410 2# $a Naciones Unidas, Comisión de Derecho Internacional <br>
'''no:''' <br>
'''not:''' <br>
410 2# $a Naciones Unidas. $b Comisión de Derecho Internacional <br>
410 2# $a Naciones Unidas. $b Comisión de Derecho Internacional <br>
670 ## $a Site Web des Nations Unies, 10 février 2014 $b (Naciones Unidas, Comisión de Derecho Internacional)<br>
670 ## $a Site Web des Nations Unies, 10 février 2014 $b (Naciones Unidas, Comisión de Derecho Internacional)<br>
410 2# $a Zhongguo yi qi yi biao xue hui. $b Precision Machinery Branch <br>
410 2# $a Zhongguo yi qi yi biao xue hui. $b Precision Machinery Branch <br>
410 2# $a Chinese Society of Apparatus and Instruments, Precision Machinery Branch <br>
410 2# $a Chinese Society of Apparatus and Instruments, Precision Machinery Branch <br>
'''no:''' <br>
'''not:''' <br>
410 2# Chinese Society of Apparatus and Instruments. $b Precision Machinery Branch <br>
410 2# Chinese Society of Apparatus and Instruments. $b Precision Machinery Branch <br>
670 ## $a Guang xue, jing mi gong cheng, 1998, 1: $b couverture (Zhongguo yi qi yi biao xue hui jing mi ji xie fen hui) colophon (Precision Machinery Branch, Chinese Society of Apparatus and Instruments)<br>
670 ## $a Guang xue, jing mi gong cheng, 1998, 1: $b couverture (Zhongguo yi qi yi biao xue hui jing mi ji xie fen hui) colophon (Precision Machinery Branch, Chinese Society of Apparatus and Instruments)<br>
