Cita APA (7th ed.)

United States. Library of Congress Subject Cataloging Division. (1979). Classification. Class B, Subclasses B-BJ: Philosophy, Psychology (3rd ed.). The Library.

Cita Chicago (17th ed.)

United States. Library of Congress Subject Cataloging Division. Classification. Class B, Subclasses B-BJ: Philosophy, Psychology. 3rd ed. Washington: The Library, 1979.

Cita MLA (9th ed.)

United States. Library of Congress Subject Cataloging Division. Classification. Class B, Subclasses B-BJ: Philosophy, Psychology. 3rd ed. The Library, 1979.