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321 Former Publication Frequency (R)

Record Type
BIB
Input Standards
Required if applicable/Optional
1st Indicator Undefined
	Undefined
2nd Indicator Undefined
	Undefined
Subfields (R=Repeatable NR=Nonrepeatable)		Input Standards
ǂa	Former publication frequency (NR)	Mandatory/Mandatory
ǂb	Dates of former publication frequency (NR)	Required if applicable/Required if applicable
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, punctuation, and representation of numerals:

Capitalize the first letter of the first word in subfield ǂa.
Enter a comma between subfields ǂa and ǂb.
Do not enter final punctuation unless the field ends with an abbreviation.
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. 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

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

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 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.

Indexing

Field 321 is not indexed.

This page last revised: October 13, 2017

3xx Introduction