@book{51987,
	author = {United States. and Stanley, David Sloane,},
	title = {Report on the Yellowstone Expedition of 1873,},
	publisher = {Govt. Print. Off.,},
	year = {1874.},
	address = {Washington,},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.00170601051}
}