APA aipamena

Tack, G., & Alfred. (1963). How to sell successfully overseas. B.I. Publications.

Chicago Style aipamena

Tack, George, and Alfred. How to Sell Successfully Overseas. B.I. Publications, 1963.

MLA aipamena

Tack, George, and Alfred. How to Sell Successfully Overseas. B.I. Publications, 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.