References
- Coultas, D.B., Stidley, C.A., and Samet, J.M. (1993), “Cigarette Yields of Tar and Nicotine and Markers of Exposure to Tobacco Smoke,” American Review of Respiratory Disease, 148, 435–440.
- Davis, R. M., Healy, P., and Hawk, S.A. (1990), “Information on Tar and Nicotine Yields on Cigarette Packages,” American Journal of Public Health, 80, 551–553.
- Mendenhall, W., and Sincich, T. (1992), Statistics for Engineering and the Sciences (3rd ed.), New York: Dellen Publishing Co.