@book{218641,
	author = {United States},
	title = {Water operation and maintenance bulletin},
	publisher = {U.S. Dept. of the Interior, Bureau of Reclamation},
	address = {Denver, Colo.},
	note = {Title from title screen (viewed on Nov. 22, 2002)},
	url = {http://purl.access.gpo.gov/GPO/LPS5857}
}