Cita APA

United States. Library of Congress. Subject Cataloging Division & United States. Library of Congress. Classification Division. (1942). Outline of the Library of Congress classification (Rev. and enl. ed. of "Outline scheme of classes.".). [U.S. Govt. Print. off.].

Citación estilo Chicago

United States. Library of Congress. Subject Cataloging Division and United States. Library of Congress. Classification Division. Outline of the Library of Congress Classification. Rev. and enl. ed. of "Outline scheme of classes.". Washington: [U.S. Govt. Print. off.], 1942.

Cita MLA

United States. Library of Congress. Subject Cataloging Division and United States. Library of Congress. Classification Division. Outline of the Library of Congress Classification. Rev. and enl. ed. of "Outline scheme of classes.". [U.S. Govt. Print. off.], 1942.