01062oas 2200337 a 450 991070177640332120120417085320.0(CKB)5470000002420331(OCoLC)785876173(EXLCZ)99547000000242033120120417b19521964 |a engur|||||||||||txtrdacontentcrdamediacrrdacarrierOperation and maintenance equipment and procedures[electronic resource][Denver, Colo.] Dept. of the Interior, Bureau of Reclamation1 online resource (49 volumes)Irrigation engineeringPeriodicalsWater-supply engineeringPeriodicalsIrrigation engineeringWater-supply engineeringUnited States.Bureau of Reclamation.GPOGPOGPOJOURNAL9910701776403321Operation and maintenance equipment and procedures3168600UNINA