Gordon, I. (2002). Competitor targeting: Winning the battle for market and customer share. Wiley.
Chicago-Zitierstil (17. Ausg.)Gordon, Ian. Competitor Targeting: Winning the Battle for Market and Customer Share. Etobicoke: Wiley, 2002.
MLA-Zitierstil (9. Ausg.)Gordon, Ian. Competitor Targeting: Winning the Battle for Market and Customer Share. Wiley, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.