1. The undecided student-how different is he?;Baird;Personnel and Guidance Journal,1969
2. Career development for the majority;Blocker;Journal of College Placement,1977
3. A center for undecided college students;Bonar;Personnel and Guidance Journal,1976
4. Career interest test results: A paradox;Cappeto;Journal of College Placement,1978
5. Holland , J. November 1976