000 00314nam a2200121Ia 4500
008 140317s9999 xx 000 0 und d
082 _a632.58
100 _aBradford,Michael.
245 _aCrop spraying simplified.
260 _aOxford
_bBlackwell Scientific Publications.
_c1961
300 _a113
942 _2ddc
_cBK
999 _c2144
_d2144