Classification.
Class C: Auxiliary sciences of history.
APA Citation
Library of Congress. Subject Cataloging Division. (1961). Classification: Class C: Auxiliary sciences of history. 2d ed. Washington.
MLA Citation
Library of Congress. Subject Cataloging Division. Classification: Class C: Auxiliary Sciences of History. 2d ed. Washington, 1961.
Warning: These citations may not always be complete (especially for serials).