- DECO (編) (2006) 外来生物辞典. 東京書籍, 東京.
- 自然環境研究センター (編著) (2008) 決定版 日本の外来生物. 平凡社, 東京.
- Curtis, Paul D. and Sullivan, Kristi L. (2001) Tree Squirrels, Wildlife Damage Management Fact Sheet Series, Cornell Cooperative Extension, Ithaca, N.Y.
- Wilson & Reeder (eds.) (2005) Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (http://www.press.jhu.edu).
- Gurnell et al. (2006) Squirrel poxvirus: Landscape scale strategies for managing disease threat. Biological Conservation. 131, 287-295.
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