00462nam a2200157Ia 4500001000900000003000500009008004100014010001100055040000900066100001500075245010700090260004000197300001000237650002900247650002800276Para_378CHAP220125s1939 xx 000 0 und d a199133 cCHAP aHyre, R.A. aThe effect of sulfur fungicides on the photosinthesis and respiration of apple leaves /c by R.A. Hyre aIthaca, N.Y. :b Cornell University a40 p. aManzana x enfermedades  aManzana x fumigacioĢn