Classification.
Class L: Education.

APA Citation

Library of Congress. Subject Cataloging Division., Library of Congress. Classification Division. (1951). Classification: Class L: Education. 3d ed. Washington: U.S. Govt. Print. Off..

MLA Citation

Library of Congress. Subject Cataloging Division, and Library of Congress. Classification Division. Classification: Class L: Education. 3d ed. Washington: U.S. Govt. Print. Off., 1951.