BibFormats

019  OCLC Control Number Cross-Reference (NR)

Record Type

BIB

Input Standards

Field (Full/Minimal)
System supplied/System supplied
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards (Full/Minimal)
ǂa OCLC control number of merged and deleted record (R) System supplied/System supplied

Definition

The OCLC control number of duplicate records that have been merged and deleted from WorldCat by the Duplicate Detection and Resolution process or OCLC staff.

The system generates field 019 when records are merged in WorldCat. Processing includes transferring symbols of holding libraries into the retained record, transferring some unique bibliographic data and deleting the duplicate records.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank.

blank character

Undefined

2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

blank character

Undefined

Subfields

 
ǂa OCLC control number of merged and deleted record

The OCLC control number of duplicate records that have been merged and deleted from WorldCat through an automated or manual process. Control numbers are retained in repeated subfields ǂa in numerical order rather than in the order the records were merged and deleted.

019     62874189 ǂa 244170452 ǂa 677051564

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 019.

MARC 21

Field 019 is OCLC-defined and therefore not included in MARC 21 Format for Bibliographic Data.