Παραπομπή σε μορφή APA (7η εκδ.)

Seyfried, E. (2007). Indicators for quality in VET: To enhance European cooperation. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Seyfried, Erwin. Indicators for Quality in VET: To Enhance European Cooperation. Luxembourg: Office for Official Publications of the European Communities, 2007.

Παραπομπή σε μορφή MLA (8th εκδ.)

Seyfried, Erwin. Indicators for Quality in VET: To Enhance European Cooperation. Office for Official Publications of the European Communities, 2007.