1. : “An Introduction to Population Genetics Theory.” New York: Harper and Row, 1970.
2. : “An Introduction to Probability and its Applications.” 3rd Ed. New York: Wiley, 1968, vol 1.
3. U.S. Department of Health, Education and Welfare: “Vital Statistics of the United States 1970. Volume 1: Natality.” Washington, 1975, Table I-XV.
4. The Quality of People: Human Evolutionary Changes