@book{24829,
	author = {Covert, Clermont Calvert, and Ellsworth, Clarence Eugene,},
	title = {Water-supply investigations in the Yukon-Tanana region, Alaska, 1907 and 1908,},
	publisher = {Govt. print. off.,},
	year = {1909.},
	series = {United States. Geological survey. Water-supply paper},
	address = {Washington,},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.00297140425}
}