Παραπομπή σε μορφή APA (7η εκδ.)

Mavrogiannis, D. (1994). Co-operatives in Eastern & Central Europe: Bulgaria. International Co-operative Alliance.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Mavrogiannis, Dionysos. Co-operatives in Eastern & Central Europe: Bulgaria. Geneva: International Co-operative Alliance, 1994.

Παραπομπή σε μορφή MLA (8th εκδ.)

Mavrogiannis, Dionysos. Co-operatives in Eastern & Central Europe: Bulgaria. International Co-operative Alliance, 1994.