Παραπομπή σε μορφή APA (7η εκδ.)

Zymelman, M. (1976). The economic evaluation of vocational training programs. Johns Hopkins University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zymelman, Manuel. The Economic Evaluation of Vocational Training Programs. Baltimore: Johns Hopkins University Press, 1976.

Παραπομπή σε μορφή MLA (9th εκδ.)

Zymelman, Manuel. The Economic Evaluation of Vocational Training Programs. Johns Hopkins University Press, 1976.