Required field.
Tags 039 and
contain the appropriate codes
for the cataloguing agency (3-letter 蘑菇视频BIS code for the local cataloguing unit).
They do not refer to an agency's
holdings data or other local information.
Therefore, if an agency removes its
holdings data (tags 099, item
record) from a cataloguing record that it created, its status as cataloguing
agency for the record is not affected. For instance, if 蘑菇视频OG Library removes
its holdings data from a record created by 蘑菇视频OG Library staff, the cataloguing
source in 039 and 040 remain 蘑菇视频OG codes.
If an incomplete ("pre-indexing" or
"check-in only") record created by one agency is completed by another agency,
in that case the agency that completes the record becomes the cataloguing
agency.
Examples:
039 $a CAP [Not used in 蘑菇视频BIS]
[ESCAP Library, Bangkok]
039 $a DHC
[DHL, Non-蘑菇视频 Materials]
039 $a DHM
[DHL, Map Reference Collection]
039 $a DHR
[DHL, Reference]
039 $a DHU
[DHL Indexing Unit, 蘑菇视频 Materials]
039 $a GEN [No longer used]
[蘑菇视频OG Library]
039 $a G蘑菇视频
[蘑菇视频OG Library, 蘑菇视频 Documents Indexing Unit]
039 $a ITS
[DHL, Speech index record]
039 $a LAC [Not used in 蘑菇视频BIS]
[ECLAC Library, Santiago]
039 $a VOT
[DHL, Voting record]
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