APA (7e ed.) Bronvermelding

Martin, R. F. R. (1939). National income in the United States: 1799-1938. National Industrial Conference Board.

Chicago (17e ed.) Bronvermelding

Martin, Robert Fitz Randolph. National Income in the United States: 1799-1938. New York: National Industrial Conference Board, 1939.

MLA (9e ed.) Bronvermelding

Martin, Robert Fitz Randolph. National Income in the United States: 1799-1938. National Industrial Conference Board, 1939.