Cita APA (7a ed.)

Aubrey, H. G. (1957). United States imports and world trade. At the Clarendon Press.

Cita Chicago Style (17a ed.)

Aubrey, Henry G. United States Imports and World Trade. Oxford: At the Clarendon Press, 1957.

Cita MLA (9a ed.)

Aubrey, Henry G. United States Imports and World Trade. At the Clarendon Press, 1957.