Heddesheimer, J. C. (1980). Vocational education and mid-career change. National Center for Research in Vocational Education.
Chicago-Zitierstil (17. Ausg.)Heddesheimer, Janet C. Vocational Education and Mid-career Change. Columbus, Ohio: National Center for Research in Vocational Education, 1980.
MLA-Zitierstil (9. Ausg.)Heddesheimer, Janet C. Vocational Education and Mid-career Change. National Center for Research in Vocational Education, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.