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www.loc.gov/marc/
Library of Congress Machine Readable Cataloging
The MARC formats are standards for the representationand communication of bibliographic and related information in machine-readable form.
Active
Since 1999
In Washington, DC
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Org. type:
Government / public sector
Categories:
Civic data
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Data schemas and standards
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The Tech
Tags:
United States (federal government)
Last modified: Jan 28, 2026
Added: Jun 22, 2021
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