Cita APA (7a ed.)

Vousden, N. (1990). The economics of trade protection. Cambridge University Press.

Cita Chicago Style (17a ed.)

Vousden, Neil. The Economics of Trade Protection. Cambridge ; New York: Cambridge University Press, 1990.

Cita MLA (8a ed.)

Vousden, Neil. The Economics of Trade Protection. Cambridge University Press, 1990.