APA (7th ed.) Citation

U. S. Library of Congress. Information Systems Office. (1969). Marc manuals used by the Library of Congress. Information Science and Automation Division, American Library Associaiton.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. Information Systems Office. Marc Manuals Used by the Library of Congress. Chicago: Information Science and Automation Division, American Library Associaiton, 1969.

MLA (9th ed.) Citation

U. S. Library of Congress. Information Systems Office. Marc Manuals Used by the Library of Congress. Information Science and Automation Division, American Library Associaiton, 1969.