APA aipamena

Ranganathan, S. R. (1977). Colon classification.

Chicago Style aipamena

Ranganathan, S R. Colon Classification. Asia Publishing House, Bombay, 1977.

MLA aipamena

Ranganathan, S R. Colon Classification. 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.