Cita APA (7th ed.)

Avram, H. (1968). The MARC pilot proyect. Library of Congress.

Cita Chicago (17th ed.)

Avram, Henriette. The MARC Pilot Proyect. Washington: Library of Congress, 1968.

Cita MLA (9th ed.)

Avram, Henriette. The MARC Pilot Proyect. Library of Congress, 1968.