@book{70993,
	author = {Burpee, Lawrence J.},
	title = {Pathfinders of the Great Plains: A Chronicle of La Vérendrye and his Sons},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-10-01},
	url = {https://www.gutenberg.org/ebooks/30145}
}