Cita APA (7a ed.)

Library of Congress. MARC Development Office. (1971). Serials: A Marc format. Library of Congress.

Cita Chicago Style (17a ed.)

Library of Congress. MARC Development Office. Serials: A Marc Format. Washington: Library of Congress, 1971.

Cita MLA (9a ed.)

Library of Congress. MARC Development Office. Serials: A Marc Format. Library of Congress, 1971.