00453nam a2200181Ia 4500001001000000003000500010008004100015010001100056040000900067082001800076100001700094245005700111250000800168260003300176300001000209650001700219650003500236Para_1914CHAP220125sc195 xx 000 0 und d a200521 cCHAP aPA 632.951 O5 aOng, E.R. de aChemistry and uses of pesticides /c by E.R. de Ong a2a. aNew York :b Chapman & Hall a33 p. aInsecticidas aPesticidas x investigacioĢn