00545nam a2200157Ia 450000100070000000500170000707400200002408600130004424500450005726000690010250000540017165000340022565000360025971000490029585600430034429973420160527183651.0  a0660-E (online)0 aI 27.41:00aWater operation and maintenance bulletin  aDenver, Colo.bU.S. Dept. of the Interior, Bureau of Reclamation  aTitle from title screen (viewed on Nov. 22, 2002) 0aIrrigation engineering2Local 0aWater-supply engineering2Local00aUnited StatesbBureau of Reclamation.2Local7 uhttp://purl.access.gpo.gov/GPO/LPS5857