1. Baseball Register, St. Louis: The Sporting News, 1951, 1956, 1958, 1961, 1967, 1968.
2. H. D. Brunk,An Introduction to Mathematical Statistics, 2nd ed., Waltham, Massachusetts: Blaisdell Publishing Company, 1965.
3. H. Edwards,The Sociology of Sport, Homewood, Illinois: Dorsey Press, 1973.
4. P. M. Gregory,The Baseball Player — An Economic Study, Washington, D.C.: Public Affairs Press, 1956.
5. E. Malinvaud,Statistical Methods of Econometrics, Amsterdam: North Holland Publishing Company, 1970.