APA (7e ed.) Bronvermelding

Gemmill, P. F., & Blodgett, R. H. (1947). Current economic problems (3d ed.). Harper & Brothers.

Chicago (17e ed.) Bronvermelding

Gemmill, Paul F., en Ralph H. Blodgett. Current Economic Problems. 3d ed. New York, London: Harper & Brothers, 1947.

MLA (8e ed.) Bronvermelding

Gemmill, Paul F., en Ralph H. Blodgett. Current Economic Problems. 3d ed. Harper & Brothers, 1947.