Library of Congress

Cataloging Distribution Service

The Library of Congress > Cataloging Distribution Service > MARC Distribution Services (databases) > Subject Authorities (database)
Subject Authorities (database)
Computer file
MARC records for subject headings established by LC. Available in MARC 21 and MARCXML formats.

Check the latest Technical Notices for MDS services.

2015 Subscription: Available weekly. Approximately 8,400 records; including 2,900 new records.

2015 Price: $2,990

Retrospective: 1986-2014. 424,500 records. File size: 202 MB. Avg. record length: 486 bytes.

2015 Price: $1,525

Introduction to MARC Distribution Services (databases)

Library of Congress cataloging records are available via FTP (File Transfer Protocol) delivery. Records are for materials in hundreds of languages, including non-roman alphabets in original scripts. MDS provides national level cataloging for almost all English-language imprints.

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