000 00323nam a2200121Ia 4500
008 170101s1978 xx 000 0 und d
082 _a333.913 HEZ
100 _aHezem Roger W.
245 0 _aWater Production Functions for Irrigated agriculture.
260 _bIohea State Uni.
_c1978
300 _a215 p
942 _2ddc
_cB
999 _c643016
_d643016