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Descriptive Cataloging Manual Section Z1 and
LC Guidelines Supplement to MARC 21 Format for Authority Data
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9/9/09
The Policy and Standards Division has made available a comprehensive version of the Descriptive Cataloging Manual (DCM) Z1 and the LC Guidelines Supplement to the MARC 21 Format for Authortiy Data at the links below. These documents are current as of August 1, 2009.
Note to NACO participants: DCM Z1 includes an appendix with instructions specific to Library of Congress staff that may be exluded when printing.
- Link to DCM Z1 (PDF - 152 p.; 1.8 MB)
- Link to LC Guidelines Supplement (PDF - 136 p.; 1.6 MB)
Electronic versions of both documents are also available through Cataloger’s Desktop. Quarterly updates are available from the Cataloging Distribution Service.