Παραπομπή σε μορφή APA (7η εκδ.)

Coles, M., & Oates, T. (2005). European reference levels for education and training: Promoting credit transfer and mutual trust. Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Coles, Mike, και Tim Oates. European Reference Levels for Education and Training: Promoting Credit Transfer and Mutual Trust. Luxembourg: Office for Official Publications of the European Communities, 2005.

Παραπομπή σε μορφή MLA (8th εκδ.)

Coles, Mike, και Tim Oates. European Reference Levels for Education and Training: Promoting Credit Transfer and Mutual Trust. Office for Official Publications of the European Communities, 2005.