Cita APA (7th ed.)

Ranganathan, S., & Palmer, B. I. (1989). Elements of library classification. UBS Pub. Dist.

Cita Chicago (17th ed.)

Ranganathan, S.R, i B. I. Palmer. Elements of Library Classification. New Delhi: UBS Pub. Dist, 1989.

Cita MLA (9th ed.)

Ranganathan, S.R, i B. I. Palmer. Elements of Library Classification. UBS Pub. Dist, 1989.