00474nam a2200157Ia 4500001001000000003000500010008004100015010001100056040000900067100001600076245008300092260004600175300001000221440004200231650004300273Para_4346CHAP220125s1945    xx            000 0 und d  a202873  cCHAP  aRoark, R. C  aA third list of publications on DDT January through june 1945  /c R. C. Roark  aWashington  :b Department of Agriculture  a28 p.  aEUA. Department of Agriculture E; 674  aD.D.T. (Insecticida) x Bibliografía