LC classification outline /
Office for Subject Cataloging Policy, Collections Services, Library of Congress.
APA Citation
Library of Congress. Office for Subject Cataloging Policy. (1990). LC classification outline. 6th ed. Washington: The Office .
MLA Citation
Library of Congress. Office for Subject Cataloging Policy. LC Classification Outline. 6th ed. Washington: The Office , 1990.
Warning: These citations may not always be complete (especially for serials).