APA (7th ed.) Zitazioa

Magel, C. R. (1989). Key guide to information sources in animal rights. Mansell.

Chicago Style (17th ed.) Zitazioa

Magel, Charles R. Key Guide to Information Sources in Animal Rights. London: Mansell, 1989.

MLA (9th ed.) Zitazioa

Magel, Charles R. Key Guide to Information Sources in Animal Rights. Mansell, 1989.