Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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