Cita APA (7a ed.)

Shone, R. (1972). The pure theory of international trade. Macmillan.

Cita Chicago Style (17a ed.)

Shone, R. The Pure Theory of International Trade. London [etc.]: Macmillan, 1972.

Cita MLA (9a ed.)

Shone, R. The Pure Theory of International Trade. Macmillan, 1972.