31 Busvine, James R. 1973 Appropriate formulations of insecticide for different louse control situations Horwitz, Abraham Proceedings of the International Symposium on the control of lice and louse-borne diseases Washington, D.C., U.S.A. Pan American Health Organization 263 175-177 46435 December 4-6, 1972Book, Section http://www.phthiraptera.org/Publications/46435.pdf