Παραπομπή σε μορφή APA (7η εκδ.)

Mitchell, W. C. (1951). What happens during business cycles, a progress report. National Bureau of Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Mitchell, Wesley Clair. What Happens During Business Cycles, a Progress Report. [New York]: National Bureau of Economic Research, 1951.

Παραπομπή σε μορφή MLA (8th εκδ.)

Mitchell, Wesley Clair. What Happens During Business Cycles, a Progress Report. National Bureau of Economic Research, 1951.