000 00306nam a2200133Ia 4500
008 170101s1956 xx 000 0 und d
082 _a632 D44D
100 _aDickson, J.G.
245 0 _aDiseases of field crops
250 _a2nd.
260 _aN.Y.
_bMc Graw-Hill
_c1956
300 _a517
942 _2ddc
_cB
999 _c2224
_d2224