Παραπομπή σε μορφή APA (7η εκδ.)

Hempel, G. H. (1971). The postwar quality of State and local debt. National Bureau of Economic Research; distributed by Columbia University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hempel, George H. The Postwar Quality of State and Local Debt. New York: National Bureau of Economic Research; distributed by Columbia University Press, 1971.

Παραπομπή σε μορφή MLA (8th εκδ.)

Hempel, George H. The Postwar Quality of State and Local Debt. National Bureau of Economic Research; distributed by Columbia University Press, 1971.