APA aipamena

Hibbert, E. P. (1990). Management of international trade promotion. Routledge.

Chicago Style aipamena

Hibbert, Edgar P. Management of International Trade Promotion. London: Routledge, 1990.

MLA aipamena

Hibbert, Edgar P. Management of International Trade Promotion. Routledge, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.