Rules for descriptive cataloging in the Library of Congress. Supplement.
1949-1951.
APA Citation
Library of Congress. Descriptive Cataloging Division. (1952). Rules for descriptive cataloging in the Library of Congress. Supplement. Washington: [s.n.].
MLA Citation
Library of Congress. Descriptive Cataloging Division. Rules for Descriptive Cataloging In the Library of Congress. Supplement. Washington: [s.n.], 1952.
Warning: These citations may not always be complete (especially for serials).