01045nas 2200325 a 450 991070177610332120120417090009.0(CKB)5470000002420334(OCoLC)785876329(EXLCZ)99547000000242033420120417b19641970 |a engur|||||||||||txtrdacontentcrdamediacrrdacarrierIrrigation operation and maintenance bulletin[electronic resource]Denver, Colo. Dept. of the Interior, Bureau of Reclamation1 online resource (29 volumes)Irrigation engineeringUnited StatesPeriodicalsWater-supply engineeringPeriodicalsIrrigation engineeringWater-supply engineeringUnited States.Bureau of Reclamation.GPOGPOJOURNAL9910701776103321Irrigation operation and maintenance bulletin3168597UNINA