Douglas A. Elrod, Earl G. Zimmerman, Philip D. Sudman, Gary A. Heidt: A New Subspecies of Pocket Gopher (Genus Geomys) from the Ozark Mountains of Arkansas with Comments on its Historical Biogeography. In: Journal of Mammalogy. Band81, Nr.3, 18. August 2000, ISSN1545-1542, S.852–864, doi:10.1093/jmammal/81.3.852.
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Douglas A. Elrod, Earl G. Zimmerman, Philip D. Sudman, Gary A. Heidt: A New Subspecies of Pocket Gopher (Genus Geomys) from the Ozark Mountains of Arkansas with Comments on its Historical Biogeography. In: Journal of Mammalogy. Band81, Nr.3, 18. August 2000, ISSN1545-1542, S.852–864, doi:10.1093/jmammal/81.3.852.