Classification.
Class B, part 1, B-BJ: Philosophy.

APA Citation

Library of Congress. Subject Cataloging Division., Gale Research Company., Library of Congress. Classification Division. Classification. (1950). Classification: Class B, part 1, B-BJ: Philosophy. 2d ed. Washington.

MLA Citation

Library of Congress. Subject Cataloging Division, Gale Research Company, and Library of Congress. Classification Division. Classification. Classification: Class B, Part 1, B-BJ: Philosophy. 2d ed. Washington, 1950.

Warning: These citations may not always be complete (especially for serials).