APA (7e ed.) Bronvermelding

Beard, C. A. (1939). America in midpassage, by Charles A. Beard & Mary R. Beard; illustrated from drawings by Wilfred Jones. Macmillan.

Chicago (17e ed.) Bronvermelding

Beard, Charles A. America in Midpassage, by Charles A. Beard & Mary R. Beard; Illustrated from Drawings by Wilfred Jones. New York: Macmillan, 1939.

MLA (9e ed.) Bronvermelding

Beard, Charles A. America in Midpassage, by Charles A. Beard & Mary R. Beard; Illustrated from Drawings by Wilfred Jones. Macmillan, 1939.