00703nam a2200217Ia 4500001001000000003000500010008004100015010001100056040000900067082002100076100001700097245012000114260007600234300000900310440002000319500004600339650002300385650003900408700001800447700002000465Para_3682CHAP220125s1939    xx            000 0 und d  a202282  cCHAP  aPA-C 632.951 S67  aBoyce, A.  M  aCombination of cryolite and zinc materials with oil sprays on oranges  /c A. M. Boyce, C. O. Persing, E. R. Parker  aRiverside, Calif.  :b University of California. College of Agriculture  a2 h.  aNews letter; 14  aEncuadernado con otros impresos similares  aDDT (Insecticida)   aFertilizantes x Efecto en Naranja  aParker, E. R.  aPersing, C. O.