000 00345 am a2200121 a 4500
100 1 _aBallard, W.S.
245 1 _aApple powdery mildew and its control in the pajaro valley
260 _aWashington
_c1914
300 _a1-26 p.
942 _2udc
_cB
440 _aApple United States Department of Agriculture . Bulletin No. 120
901 _aS51439
999 _c109013
_d109013