Παραπομπή σε μορφή APA (7η εκδ.)

Otero Hidalgo, C., Munoz Machado, A., & Marcos Sanchez, A. (2001). Vocational education and training in Spain (2nd ed.). Office for Official Publications of the European Communities.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Otero Hidalgo, Carlos, Andres Munoz Machado, και Aitor Marcos Sanchez. Vocational Education and Training in Spain. 2nd ed. Luxembourg: Office for Official Publications of the European Communities, 2001.

Παραπομπή σε μορφή MLA (8th εκδ.)

Otero Hidalgo, Carlos, et al. Vocational Education and Training in Spain. 2nd ed. Office for Official Publications of the European Communities, 2001.