00541nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067100001900076245009400095260008600189300001000275650003700285650003100322700001800353Para_6990CHAP220125s1942    xx            000 0 und d  a205736  cCHAP  aMarcovitch, S.  aFluorine compounds useful in the control of insects /c by S. Marcovitch and W.W. Stanley  aKnoxville, Tenn. :b The University of Tennessee. Agricultural Experiment Station  a46 p.  aControl biológico de insectos   aInsecticidas x análisis  aStanley, W.W.