000			00297nam a22001337a 4500
003			OSt
008			241005b |||||||| |||| 00| 0 eng d
082			_a632 _bD44D
100			_aDickson,J.G.
245			_aDecease of field Crops
260			_aMcgraw Hill _c1947
300			_a429
942			_2ddc _cPER
999			_c46233 _d46233