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| Baudoin, Claude, Sosa, Vinicio J. and Serrano, Valentina Records of Spermophilus mexicanus (Rodentia Sciuridae) in the Bolsón de Mapimí (Durango, Mexico) and comparison with Texan and Coahuilan forms of the Parvidens subspecies. Acta Zool. Mex, 2004, vol.20, no.2, p.233-235. ISSN 0065-1737
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