APA (7th ed.) Zitazioa
Bostock, S. S. C. (1993). Zoos and animal rights: The ethics of keeping animals. Routledge.
Chicago Style (17th ed.) Zitazioa
Bostock, Stephen St. C. Zoos and Animal Rights: The Ethics of Keeping Animals. London ; New York: Routledge, 1993.
MLA (9th ed.) Zitazioa
Bostock, Stephen St. C. Zoos and Animal Rights: The Ethics of Keeping Animals. Routledge, 1993.
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