00528nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067245007400076260005800150300001000208440004300218650009100261700001800352Para_4132CHAP220125s1936    xx            000 0 und d  a202692  cCHAP  aPractical sanitation for apple orchards  /c by M. D. Farrar [et.al.]  aUrbana, Illinois  :b Agricultural Experiment Station  a23 p.  aIllinois Agri. Exp. Sta. Circular; 443  aManzana x Plagas  Manzana x Enfermedades  Manzana x Fumigación  Control de plagas  aFarrar, M. D.