Cita APA (American Psychological Association)

Library of Congress. Network Development and Marc Standards Office. (1988). Usmarc code list for countries. Library of Congress.

Citación Chicago Style

Library of Congress. Network Development and Marc Standards Office. Usmarc Code List for Countries. Washington: Library of Congress, 1988.

Cita MLA (Modern Language Association of America)

Library of Congress. Network Development and Marc Standards Office. Usmarc Code List for Countries. Library of Congress, 1988.