Cita APA (7a ed.)

United States. Library of Congress, Subject Cataloging Division, & Library of Congress Office for Subject Cataloging Policy. (2003). LC classification outline (Seventh edition.). Library of Congress,Cataloging Distribution Service.

Cita Chicago Style (17a ed.)

United States. Library of Congress, Subject Cataloging Division, y Library of Congress Office for Subject Cataloging Policy. LC Classification Outline. Seventh edition. Washington, D. C: Library of Congress,Cataloging Distribution Service, 2003.

Cita MLA (9a ed.)

United States. Library of Congress, Subject Cataloging Division, y Library of Congress Office for Subject Cataloging Policy. LC Classification Outline. Seventh edition. Library of Congress,Cataloging Distribution Service, 2003.