Classification. Class A: General works, Polygraphy.

APA Citation

Library of Congress. Subject Cataloging Division. (1963). Classification. Class A: General works, Polygraphy. 3d ed., with supplementary pages. Washington: For sale by the Superintendent of Documents, U.S. Govt. Print. Off..

MLA Citation

Library of Congress. Subject Cataloging Division. Classification. Class A: General Works, Polygraphy. 3d ed., with supplementary pages. Washington: For sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1963.