00266nam a2200097Ia 4500008004100000082001700041100002300058245003700081260004100118300000900159140113s9999    xx            000 0 und d  a631.548   K7  a"Hagan, Robert.M."  aIrrigation of Agricultural Lands  a1967bAmerican Soc. AgronomycU.S.A.  a1180