00569nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100002300076245010400099260005800203300001000261440004100271650005500312700003200367Para_3546CHAP220125s1943    xx            000 0 und d  a202070  cCHAP  aHopperstead, S.  L  aBitter rot of apples and its control in Delaware  /c S. L. Hopperstead, M. W. Goodwin, K. J. Kadow  aNewark, Delaware  :b Agricultural Experiment Station  a23 p.  aDelaware. Agri. Exp. Sta., Bull.; 24  aManzana x Enfermedades  Fungicidas  Mancha amarga  aGoowin, M. W.  Kadow, K. J.