1. Bell AG, 1914. How to improve the race. J Hered5(1):1–7.
2. Bruce RV, 1973. Bell: Alexander Graham Bell and the conquest of solitude Boston: Little, Brown and Company.
3. Eber DH, 1991. Genius at work: Images of Alexander Graham Bell Halifax, Nova Scotia: Nimbus Publishing, Ltd.
4. Lynn R, 2001. Eugenics: A reassessment Westport, CT: Praeger.
5. Mackenzie CD, 1928. Alexander Graham Bell, the man who contracted space New York: Houghton Mifflin Company.