APA (7th ed.) Citation

Cook, F. R. (1983). An analysis of toads of the Bufo americanus group in a contact zone in central northern North America. National Museums of Canada, National Museum of Natural Sciences.

Chicago Style (17th ed.) Citation

Cook, Francis R. An Analysis of Toads of the Bufo Americanus Group in a Contact Zone in Central Northern North America. Ottawa, Canada: National Museums of Canada, National Museum of Natural Sciences, 1983.

MLA (9th ed.) Citation

Cook, Francis R. An Analysis of Toads of the Bufo Americanus Group in a Contact Zone in Central Northern North America. National Museums of Canada, National Museum of Natural Sciences, 1983.