Cita APA (7th ed.)

Hopkinson, A. (1984). Common communication format: An implementation manual for cataloguers. s.n.].

Cita Chicago (17th ed.)

Hopkinson, Alan. Common Communication Format: An Implementation Manual for Cataloguers. [s.l: s.n.], 1984.

Cita MLA (9th ed.)

Hopkinson, Alan. Common Communication Format: An Implementation Manual for Cataloguers. s.n.], 1984.