Παραπομπή σε μορφή APA (7η εκδ.)

Collins, H. (1993). European vocational education systems: A guide to vocational education and training in the European Community. Kogan Page.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Collins, Helen. European Vocational Education Systems: A Guide to Vocational Education and Training in the European Community. London: Kogan Page, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

Collins, Helen. European Vocational Education Systems: A Guide to Vocational Education and Training in the European Community. Kogan Page, 1993.