Mungall, E. C. (2007). Exotic animal field guide: Nonnative hoofed mammals in the United States. Texas A&M University Press.
Chicago-viite (17. p.)Mungall, Elizabeth Cary. Exotic Animal Field Guide: Nonnative Hoofed Mammals in the United States. College Station: Texas A&M University Press, 2007.
MLA-viite (9. p.)Mungall, Elizabeth Cary. Exotic Animal Field Guide: Nonnative Hoofed Mammals in the United States. Texas A&M University Press, 2007.
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