@book{90395,
	author = {Denig, Edwin Thompson, and Hewitt, J. N. B.},
	title = {Indian Tribes of the Upper Missouri :},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-07-31},
	url = {https://www.gutenberg.org/ebooks/49557}
}