Παραπομπή σε μορφή APA (7η εκδ.)

Willett, T. D. (1988). Political business cycles: The political economy of money, inflation, and unemployment. Duke University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Willett, Thomas D. Political Business Cycles: The Political Economy of Money, Inflation, and Unemployment. Durham [N.C.]: Duke University Press, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Willett, Thomas D. Political Business Cycles: The Political Economy of Money, Inflation, and Unemployment. Duke University Press, 1988.