Cita APA (7a ed.)

Library of Congress. Information Systems Office. (1970). Maps: A Marc format. Specifications for Magnetic Tapes Containing Catalog Records for Maps. Library of Congress.

Cita Chicago Style (17a ed.)

Library of Congress. Information Systems Office. Maps: A Marc Format. Specifications for Magnetic Tapes Containing Catalog Records for Maps. Washington: Library of Congress, 1970.

Cita MLA (9a ed.)

Library of Congress. Information Systems Office. Maps: A Marc Format. Specifications for Magnetic Tapes Containing Catalog Records for Maps. Library of Congress, 1970.