00525nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100002500076245012300101260004900224300001500273440004300288650003600331Para_4078CHAP220125s1925    xx            000 0 und d  a202573  cCHAP  aGuba, Emil Frederick  aPhyllosticta leaf spot, fruit brotch, and canker of the apple :b its etiology and control  /c by Emil Frederick Guba  aIllinois  :b Agricultual Experiment Station  ap. 481-557  aIllinois Agri. Exp. Sta. Bulletin; 256  aFruta x Enfermedades por virus