@book{81121,
	author = {Russell, Robert J.},
	title = {Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae},
	publisher = {Project Gutenberg,},
	year = {2012},
	address = {Salt Lake City, UT :},
	note = {Release date is 2012-07-20},
	url = {https://www.gutenberg.org/ebooks/40282}
}