Microtus
Free to read here, from Project Gutenberg.
A Population Study of the Prairie Vole (Microtus ochrogaster) in Northeastern Kansas
Natural History of the Prairie Vole (Mammalian Genus Microtus)
Field Mice as Farm and Orchard Pests
Aspects of Reproduction and Development in the Prairie Vole (Microtus ochrogaster)
Two New Meadow Mice from Michoacán Mexico