Cita APA

McDonald, J. N., & Ray, C. E. (1989). The Autochthonous North American Musk Oxen Bootherium, Symbos and Gidleya (Mammalia: Artiodactyla : Bovidae). Washington: Smithsonian Institution Press.

Citación estilo Chicago

McDonald, Jerry N., y Clayton Edward Ray. The Autochthonous North American Musk Oxen Bootherium, Symbos and Gidleya (Mammalia: Artiodactyla : Bovidae). Washington: Smithsonian Institution Press, 1989.

Cita MLA

McDonald, Jerry N., y Clayton Edward Ray. The Autochthonous North American Musk Oxen Bootherium, Symbos and Gidleya (Mammalia: Artiodactyla : Bovidae). Washington: Smithsonian Institution Press, 1989.