| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 010 | LC CONTROL NUMBER (max. length = 128) |
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| $a | LC control number | |||
| $b | NUCMC control number | |||
| $z | Cancelled / invalid LC control number |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 014 | LINKAGE NUMBER (max. length = 128, repeatable)) |
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| *0 | Holdings record number | |||
| 1 | Bibliographic record number | |||
| $a | Linkage number | |||
| $b | Source of number | |||
| $z | Cancelled / invalid LC control number |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 020 | INTERNATIONAL STANDARD BOOK NUMBER (max. length = 128) |
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| $a | International Standard Book Number | |||
| $c | Terms of availability | |||
| $z | Cancelled/invalid ISBN | |||
| Note: Binding information is treated as a qualification of the ISBN. Examples: $a 0567890123 (pbk.) : $c $2.50 $c $4.95 (lib. bdg.) |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 022 | INTERNATIONAL STANDARD SERIAL NUMBER (max. length = 128) |
|||
| $a | International Standard Serial Number | |||
| $y | Incorrect ISSN | |||
| $z | Cancelled ISSN |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 024 | OTHER STANDARD IDENTIFIER (max. length = 128) |
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| 7 | Source specified in subfield $2 | |||
| 8 | Unspecified type of standard number or code | |||
| *0 | ||||
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 | ||||
| *blank | No information provided | |||
| 0 | No difference | |||
| 1 | Difference between scanned/eye-readable number or code | |||
| $a | Standard number or code | |||
| $c | Terms of availablilty | |||
| $d | Additional codes following the standard number or code (Note: This element formerly coded as b) |
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| $z | Cancelled/invalid standard number or code | |||
| $2 | Source of number or code |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 027 | STANDARD TECHNICAL REPORT NUMBER (max. length = 128, repeatable, indexed) |
|||
| $a | Standard technical report number | |||
| $z | Cancelled/invalid STRN |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 030 | CODEN DESIGNATION (max. length = 128, repeatable, indexed) |
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| $a | CODEN | |||
| $z | Cancelled or invalid CODEN |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 035 | SYSTEM CONTROL NUMBER (max. length = 128, repeatable) |
|||
| $a | System control number | |||
| $z | Cancelled/invalid system control number |
| Tag | Ind 1 | Ind 2 | Subfield Code |
Definition |
| 583 | ACTION NOTE (max. length = 512, repeatable) |
|||
| $a | Action | |||
| $b | Action identification | |||
| $c | Time of action | |||
| $d | Action interval | |||
| $e | Contingency for action | |||
| $f | Authorization | |||
| $h | Jurisdiction | |||
| $i | Method of action | |||
| $j | Site of action | |||
| $k | Action agent | |||
| $l | Status | |||
| $n | Extent | |||
| $o | Type of unit | |||
| $x | Nonpublic note | |||
| $z | Public note | |||
| $3 | Materials specified | |||
| $5 | Institution to which field applies |