Παραπομπή σε μορφή APA (7η εκδ.)

Willem, M., Brenner, B., & Da Cruz, C. Lifelong learning bibliography: A European VET perspective. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Willem, Marc, Bettina Brenner, και Carlos Da Cruz. Lifelong Learning Bibliography: A European VET Perspective. Luxembourg: Office for Official Publications of the European Communities.

Παραπομπή σε μορφή MLA (8th εκδ.)

Willem, Marc, et al. Lifelong Learning Bibliography: A European VET Perspective. Office for Official Publications of the European Communities.