00543nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100002100076245008700097260005600184300001000240440005100250650005500301700001700356Para_3781CHAP220125s1923    xx            000 0 und d  a204667  cCHAP  aOverholser, E. L  aA study of the darkening of apple tissue  /c by E. L. Overholser and W. V. Cruess  aBerkeley, Cal.  :b Agricultural Experiment Station  a40 p.  aCalifornnia Agri. Exp. Sta. Technical Paper; 7  aManzana x Enfermedades  Darkening of apple tissue1 aCruess, W. V