1. U.S. Public Health Service, A Reference Edition: 1976, U.S. Department of Health, Education, and Welfare, Public Health Service, Center for Disease Control, HEW Publication No. (CDC) 78-8357, 657 pp. 1976.
2. U.S. Public Health Service, Smoking and Health. Report of the Advisory Committee to the Surgeon General of the Public Health Service, Center for Disease Control, PHS Publication No. 1103, 387 pp. 1964.