APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.