074  GPO Item Number (R)

Definition

The United States Government Printing Office (GPO) item number. GPO uses the item number to manage the distribution of publications within its depository library system. While the item number relates to categories of publications, it is not an order number or the unique number that identifies each entry in the Catalog of U.S. Government Publications.

Guidelines

Documents distributed to depository libraries in both paper and microfiche have an item number for the paper copy and the microfiche copy. Use the following guidelines for such works:

• If a document has GPO item numbers for the paper copy and the microfiche copy, enter the item number for the paper copy in the first 074 field.

  074			1033
  074			1033-A (MF)

• If GPO distributes a publication to depository libraries more than once in the same format, but under different item numbers, enter the item from the first distribution in the first 074 field. Enter the item number from the most recent distribution in the last 074 field.

  074			0466-A-03 (MF)
  074			0455 (MF)

• If GPO distributes multipart monographs with volumes or parts in the same format, but under different numbers, enter the item numbers in volume or part number order. Indicate the volume or part in parentheses following the item number.

  074			0621 (V.1)
  074			0620 (V.2)

• If GPO distributes a serial with different volumes or parts in the same format, but having different item numbers over a period of time, enter the item numbers so that the earliest item number is in the first 074 field, and the most recent item number in the last 074 field.

  074			956
  074			956-F

• If GPO distributes a single volume or part of a serial simultaneously in paper and microfiche, follow the preceding instructions. If GPO distributes the same volume or part of a serial in the same format (i.e., paper or microfiche) under more than one item number, follow the preceding instructions.

• If GPO distributes a publication under an incorrect GPO item number, do not enter the number in subfield ǂz. The item number the publication is actually distributed under remains in subfield ǂa. Use subfield ǂz only for item numbers that are canceled, invalid, or incorrectly transcribed.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank.

	Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

	Undefined

Subfields

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 074.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 074.