- Listenly
- Public Library
- Project Gutenberg
- Animals — Variation
Animals — Variation — Audiobooks
Geographic Variation in the Harvest Mouse, Reithrodontomys megalotis, On the Central Great Plains And in Adjacent Regions
by J. Knox Jones, B. Mursaloglu
Geographic Variation in Red-backed Mice (Genus Clethrionomys) of the Southern Rocky Mountain Region
by E. Lendell Cockrum, Kenneth Leonard Fitch