000 003360000a22001450004500
060 _a100
082 _a633.089 3 DIC
100 _aDickson, James G
245 _aDiseases of field crops
260 _aNew York, Mc Graw- Hill Book Company Inc
260 _c1947
300 _a429
650 _aDiseases - field crops
942 _cBK
999 _c363817
_d363817