Citação APA (7ª ed.)

Library of Congress & Library of Congress. Policy and Standards Division. (2012). Library of Congress classification. Library of Congress, Cataloging Distribution Service.

Citação do estilo Chicago (17ª ed.)

Library of Congress e Library of Congress. Policy and Standards Division. Library of Congress Classification. Washington, D.C.: Library of Congress, Cataloging Distribution Service, 2012.

Citação MLA (8ª ed.)

Library of Congress e Library of Congress. Policy and Standards Division. Library of Congress Classification. Library of Congress, Cataloging Distribution Service, 2012.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.