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Cataloging Distribution Service

The Library of Congress > Cataloging Distribution Service > Subject Heading Authority Control > Subject Headings Manual
Subject Headings Manual
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Discontinued print publication.

Available in Cataloger's Desktop. See
Included in Cataloger's Desktop

Introduction to Subject Heading Authority Control

Available in various formats, these tools help you with subject access. The major subject authority publications include Library of Congress Subject Headings, Classification Web, and Subject Headings Manual and updates. Many of the publications are available in Classification Web ( and in Cataloger's Desktop (

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