APA (7th ed.) Zitazioa

OHLIN, B. (1967). International and international trade. Harvard University press.

Chicago Style (17th ed.) Zitazioa

OHLIN, Bertil. International and International Trade. Cambridge: Harvard University press, 1967.

MLA (9th ed.) Zitazioa

OHLIN, Bertil. International and International Trade. Harvard University press, 1967.