APA (7th ed.) Zitazioa

Root, F. R. (1984). International trade & investment (5a. ed.). South-Western.

Chicago Style (17th ed.) Zitazioa

Root, Franklin R. International Trade & Investment. 5a. ed. Cincinnati: South-Western, 1984.

MLA (9th ed.) Zitazioa

Root, Franklin R. International Trade & Investment. 5a. ed. South-Western, 1984.