Παραπομπή σε μορφή APA (7η εκδ.)

Τζώαννος, Ι. Γ. (1980). The fiscal regime for shipowning firms in the EEC. Institute of Economic and Industrial Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Τζώαννος, Ιωάννης Γ. The Fiscal Regime for Shipowning Firms in the EEC. Athens: Institute of Economic and Industrial Research, 1980.

Παραπομπή σε μορφή MLA (8th εκδ.)

Τζώαννος, Ιωάννης Γ. The Fiscal Regime for Shipowning Firms in the EEC. Institute of Economic and Industrial Research, 1980.