APA

Library of Congress, Library of Congress, . (2008). Library of Congress classification: C. Auxiliary sciences of history. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Chicago

Library of Congress, Library of Congress, . 2008. Library of Congress classification: C. Auxiliary sciences of history. Washington, D.C: Library of Congress, Cataloging Distribution Service.

Harvard

Library of Congress, Library of Congress, . (2008). Library of Congress classification: C. Auxiliary sciences of history. Washington, D.C: Library of Congress, Cataloging Distribution Service.

MLA

Library of Congress, Library of Congress, . Library of Congress classification: C. Auxiliary sciences of history. Washington, D.C: Library of Congress, Cataloging Distribution Service. 2008.