@book{24951,
	author = {Siebenthal, C. E.},
	title = {Geology and water resources of the San Luis valley, Colorado,},
	publisher = {Govt. Print. Off.,},
	year = {1910.},
	series = {Water-supply paper,},
	address = {Washington,},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.00199538287}
}