APA (7th ed.) Citation

Library of Congress & Subjet Cataloging Division. (1998). Subject Headings (21th. ed.). The National Bibliographic Service.

Chicago Style (17th ed.) Citation

Library of Congress and Subjet Cataloging Division. Subject Headings. 21th. ed. Washington: The National Bibliographic Service, 1998.

MLA (9th ed.) Citation

Library of Congress and Subjet Cataloging Division. Subject Headings. 21th. ed. The National Bibliographic Service, 1998.

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