Herr, Edwin L. and Cramer, Stanley H. (1972). <i>Vocational Guidance and Career Development in the Schools</i>

Schulz, W. E. (2012). Herr, Edwin L. and Cramer, Stanley H. (1972). <i>Vocational Guidance and Career Development in the Schools</i>. Revue Canadienne De Counseling Et De psychothérapie, 6(4). Consulté à l’adresse https://dev.journalhosting.ucalgary.ca/index.php/rcc/article/view/60801