Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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