Mayer, E. L. Nicotine insecticides : part II-search for activators / by E. L. Mayer, Florence B. Talley and C. F. Woodward - Washington : Department of Agriculture - 16 p. ; tablas - EUA. Dept. of Agri. E-709 . LCCN: 203044 Subjects--Topical Terms: Nicotina como insecticida