Feig, B. (1999). Winning marketing strategies. Prentice-Hall.
Chicago Style aipamenaFeig, Barry. Winning Marketing Strategies. Paramus, N.J: Prentice-Hall, 1999.
MLA aipamenaFeig, Barry. Winning Marketing Strategies. Prentice-Hall, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.