Goodall, J., Hudson, G. E., & Maynard, T. (2009). Hope for animals and their world: How endangered species are being rescued from the brink. New York: Grand Central Pub..
Chicago-tyylinen lähdeviittausGoodall, Jane, Gail E. Hudson, ja Thane Maynard. Hope for Animals and Their World: How Endangered Species Are Being Rescued From the Brink. New York: Grand Central Pub., 2009.
MLA-viiteGoodall, Jane, Gail E. Hudson, ja Thane Maynard. Hope for Animals and Their World: How Endangered Species Are Being Rescued From the Brink. New York: Grand Central Pub., 2009.
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