- E-bookNew Subspecies of the Rodent Baiomys From Central America University of Kansas Publications, Museum of Natural HistoryRobert L. Packard
- E-bookNew Subspecies of the Rodent Baiomys from Central AmericaRobert L. Packard
- E-bookNew Subspecies of the Rodent Baiomys from Central AmericaRobert L. Packard
- E-bookSpeciation and Evolution of the Pygmy Mice, Genus BaiomysRobert L. Packard