LC classification, additions and changes /
Cataloging Policy and Support Office, Collections Services.
APA Citation
Library of Congress. Cataloging Policy and Support Office. (1993). LC classification, additions and changes. Washington: Library of Congress .
MLA Citation
Library of Congress. Cataloging Policy and Support Office. LC Classification, Additions And Changes. Washington: Library of Congress , 1993.
Warning: These citations may not always be complete (especially for serials).