000 00298nam a2200121Ia 4500
008 170101s1981 xx 000 0 und d
082 _a631.5 STO
100 _aStoskopf Neal C.
245 0 _aUnderstanding Crop Production.
260 _bRason Pub. Co.
_c1981
300 _a433 p
942 _2ddc
_cB
999 _c773716
_d773716