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321 Former Publication Frequency (R)

Record Type
BIB
Input Standards
Field (Full/Minimal)
Required if applicable/Optional
1st Indicator Undefined
	Undefined
2nd Indicator Undefined
	Undefined
Subfields (R=Repeatable NR=Nonrepeatable)		Input Standards (Full/Minimal)
ǂa	Former publication frequency (NR)	Mandatory/Mandatory
ǂb	Dates of former publication frequency (NR)	Required if applicable/Required if applicable
ǂ0	Authority record control number or standard number (R)	Optional/Optional
ǂ1	Real World Object URI (R)	Optional/Optional
ǂ2	Source (NR)	Mandatory/Mandatory
ǂ6	Linkage (NR)	System supplied/System supplied
ǂ8	Field link and sequence number (R)	Optional/Optional

Definition

The former publication frequency of a continuing resource (serial or integrating resource). Use only when a current publication frequency is given in field 310.

Use the following guidelines for capitalization and representation of numerals:

Follow capitalization in controlled vocabulary otherwise capitalize the first letter of the first word in subfield ǂa

321

annual ǂb 1993-2005 ǂ0 http://id.loc.gov/vocabulary/frequencies/ann

If the first 321 field begins with a number and field 310 is also present, spell out the number in the first 321 field

310			4 issues yearly, ǂb August 1904-
321			Five issues yearly, ǂb 1901-June 1904

Enter each former frequency in a separate 321 field
Enter the former frequencies in the order of earliest to most recent
Spell out a number appearing in the first 321 field only, and use an Arabic numeral in subsequent 321 fields

310			Monthly, ǂb 1949-1956
321			Five issues yearly, ǂb 1947
321			14 issues yearly, ǂb 1948

For information on punctuation, see the Punctuation section below.

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

ǂa Former publication frequency

The complete statement, exclusive of dates, of the former publication frequency.

310			Monthly, ǂb 1985-
321			Ten numbers a year, ǂb 1982-1984

ǂb Dates of former publication frequency

The dates of the former publication frequency.

321

Monthly, ǂb 1957-1962

321

Bimonthly (irregular), ǂb 1964-1967

ǂ0 Authority record control number or standard number

Do not include subfield ǂ0 in WorldCat records. In the future, OCLC will provide the capability to output URIs in subfield ǂ0 based on the coding of subfields ǂa, ǂb, and ǂ2. For more information about subfield ǂ0, see Control Subfields.

ǂ1 Real World Object URI

Do not include subfield ǂ1 in WorldCat records. In the future, OCLC will provide the capability to output URIs in subfield ǂ1 based on the coding of subfields ǂa, ǂb, and ǂ2. For more information about subfield ǂ1, see Control Subfields.

ǂ2 Source of term

A MARC code that identifies the source list from which the mode of issuance is assigned. If the term appearing in the field is from a translated version of the original source document or list, the code must be followed by the appropriate 3-character MARC language code from the MARC Code List for Languages. The language code is separated from the subfield ǂ2 code by a slash. The term in subfield ǂa and the language code in subfield ǂ2 should be consistent with the language coded in field 040 subfield ǂb. For information about subfield ǂ2, see Control Subfields.

ǂ6 Linkage

Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields.

ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Punctuation

For records containing punctuation, follow these instructions:

Precede subfield ǂb by a comma-space
Include incidental punctuation needed within any subfields, e.g., commas, periods (following abbreviations or initials), etc.
Omit the terminal period at the end of the field unless the last word is an abbreviation or initial

321

Semiweekly, ǂb October 10, 1946-April 13, 1984

For records containing minimal or no punctuation, include incidental punctuation needed within any subfields. Otherwise, omit the punctuation outlined above.

321

Semiweekly ǂb October 10, 1946-April 13, 1984

For more information on punctuation, including OCLC policy, see section 2.8, Punctuation.

Indexing

Field 321 is not indexed.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 321.

This page last revised: February 28, 2023

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