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Library of Congress classification. S. Agriculture / prepared by the Cataloging Policy and Support Office, Library Services

Rev. ed. of: Classification. Class S. Agriculture / Subject Cataloging Division, Processing Services, Library of Congress. 4th ed. 1982. https://siris-libraries.si ...
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Library of Congress classification. C. Auxiliary sciences of history / prepared by the Cataloging Policy and Support Office, Library Services

Rev. ed. of: Classification. Class C. Auxiliary sciences of history. 4th ed. 1993.