000 00281nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a631.5
100 _aRae,Allan N.
245 _aCrop management economics.
260 _aLondon
_bGranda
_c1977
300 _a525
942 _2ddc
_cBK
999 _c8706
_d8706