310 - Current Publication Frequency (NR)
MARC 21 Bibliographic - Full
October 2003
First Indicator
Undefined
# - Undefined
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Second Indicator
Undefined
# - Undefined
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Subfield Codes
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$a - Current publication frequency (NR)
$b - Date of current publication frequency (NR)
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$6 - Linkage (NR)
$8 - Field link and sequence number (R)
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FIELD DEFINITION AND SCOPE
Current stated publication frequency of either an item or an update to an item. Dates
are included when the beginning date of the current frequency is not the same as the
beginning date of publication.
In records having field 008 (Fixed-Length Data Elements) or field 006 (Fixed-Length Data
Elements-Additional Material Characteristics) configured for seriality, field 362
information is related to coded information contained in 008/18 (006/01) (Frequency) and
008/19 (006/02) (Regularity). The date(s) of the current publication frequency is given
when the beginning date of the current publication frequency is not the same as the
beginning date of the publication.
When an item has ceased publication, the current frequency date is closed but remains in
field 310.
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
- Both indicator positions are undefined; each contains a blank (#).
■ SUBFIELD CODES
$a - Current publication frequency Complete statement, exclusive of dates, of the current publication frequency.
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| 310 |
##$aMonthly
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| 310 |
##$aMonthly, including annual cumulation
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| 310 |
##$aBimonthly (monthly June-July)
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| 310 |
##$aContinuously updated
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| 008/18 |
m |
| 008/19 |
n |
| 310 |
##$aMonthly (except July and Aug.)
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| 008/18 |
a |
| 008/19 |
n |
| 310 |
##$aAnnual, with quinquennial cumulations
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| 008/18 |
a |
| 008/19 |
r |
| 245 |
00$aAnnual report of the Director. |
| 310 |
##$aAnnual
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$b - Date of current publication frequency Used when the date is different from the beginning date of the publication and a
former publication frequency is given in field 321.
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| 310 |
##$aMonthly,$bJan. 1984
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| 321 |
##$aFrequency varies,$b1966-1983 |
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| 310 |
##$aMonthly,$b1958-
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| 321 |
##$aBimonthly,$b1954-1957 |
| 362 |
0#$aJan. 1954- |
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| 310 |
##$a5 no. a year,$b1946-1948
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| 321 |
##$aFour no. a year,$b1931-1945
[Field 310 gives frequency when serial ceased publication.] |
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| 310 |
##$aUpdated irregularly,$b2001-
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| 321 |
##$aUpdated monthly,$b1998-2000 |
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| 310 |
##$aUpdated quarterly,$bJan.-Mar. 2001-
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| 321 |
##$aFrequency of update varies |
$8 - Field link and sequence number
INPUT CONVENTIONS
Punctuation - Field 310 does not end with a mark of punctuation unless the last word is an
abbreviation, initial/letter, or other data that ends with a mark of punctuation. A
comma is recorded at the end of subfield $a when subfield $b is
present.
Temporary Data - Known date(s) that may not be the earliest or latest date associated with the current
frequency is enclosed within angle brackets (<...>) or omitted.