Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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