Frideres-Poos, J., Engel, G., & Lenert, J. (2002). Vocational education and training in Luxembourg (2nd ed.). Office for Official Publications of the European Communities.
Παραπομπή σε μορφή Chicago (17η εκδ.)Frideres-Poos, Jose, Gilbert Engel, και Jerry Lenert. Vocational Education and Training in Luxembourg. 2nd ed. Luxembourg: Office for Official Publications of the European Communities, 2002.
Παραπομπή σε μορφή MLA (8th εκδ.)Frideres-Poos, Jose, et al. Vocational Education and Training in Luxembourg. 2nd ed. Office for Official Publications of the European Communities, 2002.
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