Παραπομπή σε μορφή APA (7η εκδ.)

Polak, J. (2001). The Two Monetary Approaches to the Balance of Payments: Keynesian and Johnsonian. International Monetary Fund.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Polak, J. The Two Monetary Approaches to the Balance of Payments: Keynesian and Johnsonian. Washington, D.C.: International Monetary Fund, 2001.

Παραπομπή σε μορφή MLA (8th εκδ.)

Polak, J. The Two Monetary Approaches to the Balance of Payments: Keynesian and Johnsonian. International Monetary Fund, 2001.