Fisher, R.A."The Use of Multiple Measurements in Taxonomic Problems."Annals of Eugenics, VII (1936), 179-188.
2.
Fisher, R.A."The Statistical Utilization of Multiple Measurement."Annals of Eugenics, VIII (1938), 376-386.
3.
Koile, Earl A."The Development of a Measure of Interest for Selecting Faculty Counselors." Doctoral dissertation, Harvard University, 1953.
4.
Koile, Earl A."Faculty Counseling in Colleges and Universities."Teachers College Record, LV (1954), 384-389.
5.
Strong, Edward K. Jr.Vocational Interests of Men and WomenStanford University: Stanford University Press, 1943.
6.
Super, Donald E.Appraising Vocational Fitness.New York : Harper, 1949.
7.
Tiedeman, David V., Bryan, Joseph G., and Rulon, Phillip J.The Utility of the Airman Classification Battery for Assignment of Airmen to Eight Air Force Specialties.Cambridge: Educational Research Corporation , 1951.