00487nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100001600076245011400092260004600206300001000252440003700262650003000299Para_4549CHAP220125s1947    xx            000 0 und d  a203030  cCHAP  aMayer, E. L  aNicotine insecticides :b Part TV-Preliminary toxicity tests with nicotinium salts  /c E. L. Mayer, [et.al.]  aWashington  :b Department of Agriculture  a10 p.  aEUA. Dept. of Agriculture; E-725  aNicotina como insecticida