Library of Congress. Policy and Standards Division. (2009). Library of Congress subject headings (31st ed.). Library of Congress, Cataloging Distribution Service.
Citación estilo ChicagoLibrary of Congress. Policy and Standards Division. Library of Congress Subject Headings. 31st ed. Washington, D.C: Library of Congress, Cataloging Distribution Service, 2009.
Cita MLALibrary of Congress. Policy and Standards Division. Library of Congress Subject Headings. 31st ed. Library of Congress, Cataloging Distribution Service, 2009.
Warning: These citations may not always be 100% accurate.