Cita APA (7a ed.)

U. S. Library of Congress. Information systems office. (1969). Marc Manuals Used by the Library of Congress. American Library Association. Information science and automa.

Cita Chicago Style (17a ed.)

U. S. Library of Congress. Information systems office. Marc Manuals Used by the Library of Congress. Chicago: American Library Association. Information science and automa, 1969.

Cita MLA (8a ed.)

U. S. Library of Congress. Information systems office. Marc Manuals Used by the Library of Congress. American Library Association. Information science and automa, 1969.