@book{195246,
	author = {Ortiz, Roderick F. and Southeastern Colorado Water Activity Enterprise.},
	title = {Methods to identify changes in background water-quality conditions using dissolved-solids concentrations and loads as indicators, Arkansas River and Fountain Creek, in the vicinity of Pueblo, Colorado},
	publisher = {U.S. Dept. of the Interior, U.S. Geological Survey},
	year = {2004.},
	address = {Reston, Vir.},
	note = {Shipping list no.: 2004-0508-M.},
	url = {http://purl.access.gpo.gov/GPO/LPS50159}
}