000 00304 a2200133 4500
080 _a632
_bD 554 D
245 1 _aDiseases of field crops
_cby J.G. Dickson
250 _a2ns edn.
260 _aNew York
_c1956
650 _aCrop Diseases
100 1 _aDickson, J.G.
_d
300 _a517 p.
901 _a60746
999 _c45722
_d45722