TY - BOOK ED - United States TI - Water operation and maintenance bulletin CY - Denver, Colo. PB - U.S. Dept. of the Interior, Bureau of Reclamation KW - Irrigation engineering KW - Local KW - Water-supply engineering N1 - Title from title screen (viewed on Nov. 22, 2002) UR - http://purl.access.gpo.gov/GPO/LPS5857 ER -