National Geographic Society, Washington, D.C, Sky Visuals Pty. Ltd, Le Brun, N., Scott, P., & Steer, G. (1988). Australia's improbable animals. National Geographic Society.
Chicago Style (17. basım) AtıfNational Geographic Society, Washington, D.C, Sky Visuals Pty. Ltd, Nancy Le Brun, Paul Scott, ve Gary Steer. Australia's Improbable Animals. [Washington, D.C.]: National Geographic Society, 1988.
MLA (9th ed.) AtıfNational Geographic Society, Washington, D.C, et al. Australia's Improbable Animals. National Geographic Society, 1988.
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