Doane, Raymond C., Project Guidance Practice. Storrs, Connecticut: University of Connecticut, 1970. (See page 5, Table XXII).
2.
Ginzberg, Eli, et al., The Problems of Occupational Choice. Journal of Orthopsychiatry, 1950, Vol. XX, pp. 166-201.
3.
Hoyt, Kenneth B., et al., Career Education, What It Is and How To Do It. Salt Lake City: Olympus Publishing Co., 1972.
4.
Monesano, Nicholas and Geist, Harold, DifferenceIn Occupational Choice Between Ninth and Twelfth Grade Boys. Personnel and Guidance Journal, 1964, Vol. 43 (Oct.), pp. 150-54.
5.
Powell, Marvin and Bloom, Viola, Development of and Reasons for Vocational Choices of Adolescents Through the High School Years. Journal of Educational Research, 1963, Vol. 50(3), pp. 126-33.
6.
Prediger, D.J., et al., Nationwide Study of Student Career Development, No. 61. Iowa City, Iowa: American College Testing Program, Research and Development Division, November 1973 . (See Table 8, page 11).
7.
Waller, Phyllis and Waller, Richard, Adolescent Vocational Interests and Later Occupations. Journal of Applied Psychology, 1954, Vol. XXXVIII, pp. 428-31.
8.
Woal, S. Theodore, The OIVI, Vocational Guidance Service, School District of Philadelphia, Philadelphia, Pennsylvania.