Library of Congress. (1967). Classification (6a. ed.). Washington D.C.: The Library of Congress. Processing Department. Subject Cataloging Division.
Chicago Style CitationLibrary of Congress. Classification. 6a. ed. Washington D.C.: The Library of Congress. Processing Department. Subject Cataloging Division, 1967.
MLA CitationLibrary of Congress. Classification. 6a. ed. Washington D.C.: The Library of Congress. Processing Department. Subject Cataloging Division, 1967.
Warning: These citations may not always be 100% accurate.