@book{74485,
	author = {Hall, E. Raymond and Kelson, Keith R.},
	title = {The Subspecific Status of Two Central American Sloths},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-09-05},
	url = {https://www.gutenberg.org/ebooks/33639}
}