030 CODEN Designation

Codes

First and Second indicators:

# Undefined

Subfields:

a CODEN (NR)

z Canceled/invalid CODEN (R)

6 Linkage (NR)

8 Field link and sequence number (R)

NOTE: See MARC 21 Format for Bibliographic Data (030 CODEN Designation) for code definitions not given below.

Description/Instructions

Field 030 contains the CODEN–a six-character, unique, unambiguous identifier for titles of serial and nonserial publications in all subject areas. CODEN are assigned only by the International CODEN Service.

The CODEN are in the following formats:

Serial CODEN: AAAAGC

Where: AAAA = alphabetic characters based on the keywords of the publication title. This portion of the code is intended to be mnemonic.

G = an alphabetic character indicating the grid of codes from which the CODEN was taken.

C = a check character, alphabetic or numeric.

Examples: JACSAT, CRNAA4, EGWSEI

Nonserial CODEN: NNAAGC

Where: NN = two numeric digits.

AA = two alphabetic digits.

G = an alphabetic character indicating the grid of codes from which the CODEN was taken.

C = a check character, alphabetic or numeric.

Examples: 40AQAS, 15WBAX, 38APA8

Editing instructions

1. Include the first five characters plus the check character.

2. Delete any hyphen between the fourth and fifth character.

3. Omit spacing between characters.

4. Input the alphabetic characters in uppercase.

030 ## JACSAT

030 ## BOOKA7

Subfields

$a CODEN.

Subfield $a contains the correct or valid CODEN.

030 ## ILCBB

$z Canceled/invalid CODEN.

Subfield $z contains a canceled or invalid CODEN. If the correct CODEN is not known, subfield $z may be used alone in the record.

030 ## ASIRAF $z ASITAF

$6 Linkage.

For instructions on the use of subfield $6, see field 880.

Related fields, etc.

030 CODEN Designation (MARC 21 Format for Bibliographic Data)