^英文 Kindersley, Dorling. Animal. New York City: DK Publishing. 2001,2005. ISBN 0-7894-7764-5.请检查|date=中的日期值 (帮助)
延伸閱讀
Heptner, V. G.; Nasimovich, A. A; Bannikov, Andrei Grigorevich; Hoffmann, Robert S, Mammals of the Soviet Union, Volume II, part 3. Washington, D.C. : Smithsonian Institution Libraries and National Science Foundation