000 00273nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a631.5
100 _aF.A.O.
245 _aCrop water requirements.
260 _aRome
_bF.A.O.
_c1977
300 _a144
942 _2ddc
_cBK
999 _c10748
_d10748