1. Bristol, D. W., MacLeod, K. E. and Lewis, R. G.: 1984, ?Direct and Indirect Chemical Methods for Exposure Assessment?, in M., Siewierski (ed.), Determination and Assessment of Pesticide Exposure, Elsevier, New York, 79?119.
2. ACS Symposium Series;R. B. Leidy,1985
3. Leidy, R. B. and Wright, C. G.: 1987, ?Airborne Residences of a Termiticide Formulation of Chlorpyrifos in Homes-a Two-year Study?, 193rd National American Chemical Society Meeting, Denver, Colorado, April 1987, Paper No. AGRO-2.
4. Lewis, R. G. and Lee, R. E., Jr.: 1976: ?Air Pollution from Pesticides: Sources, Occuence, and Dispersion?, in R. E., Lee, Jr. (ed.), Air Pollution from Pesticides and Agricultural Processes, CRC Press: Boca Raton, Florida, Chapter 2.
5. Lewis, R. G., Brown, A. R. and Jackson, M. D.: 1977: ?Evaluation of Polyurethane Foam for High-Volume Air Sampling of Ambient Levels of Airborne Pesticides, Polychlorinated Biphenyls, and Polychlorinated Naphthalenes?, Anal. Chem. 49, 1668?1672.