U. S. Library of Congress. Information Systems Office, Library of Congress. MARC Development Office, Woods, E. W., & Maruyama, L. S. (1970). Serials: A MARC format (Preliminary ed.). Library of Congress.

U. S. Library of Congress. Information Systems Office, Library of Congress. MARC Development Office, Elaine W. Woods, and Lenore S. Maruyama. Serials: A MARC Format. Preliminary ed. Washington: Library of Congress, 1970.

U. S. Library of Congress. Information Systems Office, et al. Serials: A MARC Format. Preliminary ed. Library of Congress, 1970.