Library of Congress, Gale Research Inc, Library of Congress. Cataloging Policy and Support Office, & Library of Congress. Subject Cataloging Division. (1993). Classification. Class C. Auxiliary sciences of history (4th ed.). The Library For sale by the Cataloging Distribution Service.
Cita Chicago Style (17a ed.)Library of Congress, Gale Research Inc, Library of Congress. Cataloging Policy and Support Office, y Library of Congress. Subject Cataloging Division. Classification. Class C. Auxiliary Sciences of History. 4th ed. Washington: The Library For sale by the Cataloging Distribution Service, 1993.
Cita MLA (9a ed.)Library of Congress, et al. Classification. Class C. Auxiliary Sciences of History. 4th ed. The Library For sale by the Cataloging Distribution Service, 1993.