Cita APA

Library of Congress & Library of Congress. Cataloging Policy and Support Office. (2004). Library of Congress classification. Q. Science (2004 ed.). Library of Congress, Cataloging Distribution Service.

Citación estilo Chicago

Library of Congress and Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. Q. Science. 2004 ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 2004.

Cita MLA

Library of Congress and Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. Q. Science. 2004 ed. Library of Congress, Cataloging Distribution Service, 2004.