Definition and scope:

Fields 01X-09X contain standard numbers, classification numbers, codes, and other data elements relating to the record.

Specific field information:

For information on content designators (indicator and subfield code definitions and examples), field and subfield repeatability, and input conventions for any of the 01X-09X fields, select from the list below:

010  Library of Congress Control Number  (NR)

016  National Bibliographic Agency Control Number  (R)

035  System Control Number  (R)

040  Record Source  (NR)

041  Language Code  (R)

043  Geographic Area Code  (NR)

046  Special Coded Dates  (R)

050  Library of Congress Classification Number  (R)

052  Geographic Classification  (R)

060  National Library of Medicine Classification Number  (R)

066  Character Sets Present  (NR)

070  National Agricultural Library Classification Number  (R)

072  Human Services Code  (R)

073  Type of Program or Organization Code  (R)

080  Universal Decimal Classification Number  (NR)

082  Dewey Decimal Classification Number  (R)

084  Other Classification Number  (R)

09X  Local Classification Numbers

Content designator history:

058  Other Geographic Classification Code  [obsolete, 2000]

See also:

Variable Data Fields