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).