@book{196328,
	author = {Hart, Robert J. and Glen Canyon National Recreation Area Utah and Ariz.},
	title = {Physical and chemical characteristics of Knowles, Forgotten, and Moqui Canyons, and effects of recreational use on water quality, Lake Powell, Arizona and Utah},
	publisher = {U.S. Geological Survey},
	year = {2005.},
	series = {Scientific investigations report},
	address = {Reston, Va.},
	note = {Shipping list no.: 2005-0109-P.},
	url = {http://purl.access.gpo.gov/GPO/LPS59385}
}