Παραπομπή σε μορφή APA (7η εκδ.)

Balassa, B. A. (1991). Economic integration in Eastern Europe. Office of the Vice President, World Bank.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Balassa, Bela A. Economic Integration in Eastern Europe. Washington, D.C: Office of the Vice President, World Bank, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Balassa, Bela A. Economic Integration in Eastern Europe. Office of the Vice President, World Bank, 1991.