The 1XX field in a node label or facet indicator record contains an unestablished
term (usually a fairly broad one) that may be used in the systematic section
of a thesaurus to indicate the logical basis on which a category has been divided.
The term in the 1XX is not used as an indexing term or subject heading. This
example has code r in 008/11 indicating it came from the Art and Architecture
Thesaurus. Reference (4XX and 5XX) fields are not used in a node label record.
| LDR | *****nz###22*****n##4500 | |||||||||
| 001 | <control number> | |||||||||
| 003 | <control number identifier> | |||||||||
| 005 | 19870323201700.0 | |||||||||
| 008 |
|
|||||||||
| 010 | ## | $aex#87051955# | ||||||||
| 040 | ## | $a<organization code>$c<organization code> | ||||||||
| 150 | ## | $acatalogs by source |
Library of Congress