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 |
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 |
|
This page last revised: August 22, 2016
