Machine-readable data files :
a MARC format : draft.
APA Citation
Library of Congress. Network Development Office., McCallum, S. H., Maruyama, L. S. (1980). Machine-readable data files: a MARC format : draft. Rev. Washington: The Library.
MLA Citation
Library of Congress. Network Development Office, Sally H McCallum, and Lenore S. Maruyama. Machine-readable Data Files: a MARC Format : Draft. Rev. Washington: The Library, 1980.
Warning: These citations may not always be complete (especially for serials).