Cita APA (7a ed.)

Clark, J. M. (1931). The Costs of the World War to the American People. Yale University.

Cita Chicago Style (17a ed.)

Clark, John Maurice. The Costs of the World War to the American People. New Haven: Yale University, 1931.

Cita MLA (8a ed.)

Clark, John Maurice. The Costs of the World War to the American People. Yale University, 1931.