Dugdale, K., & Lambert, D. (2007). Smarter selling: Next generation sales strategies to meet your buyer's needs, every time. Financial Times Prentice Hall.
Chicago-Zitierstil (17. Ausg.)Dugdale, Keith, und David Lambert. Smarter Selling: Next Generation Sales Strategies to Meet Your Buyer's Needs, Every Time. Harlow: Financial Times Prentice Hall, 2007.
MLA-Zitierstil (8. Ausg.)Dugdale, Keith, und David Lambert. Smarter Selling: Next Generation Sales Strategies to Meet Your Buyer's Needs, Every Time. Financial Times Prentice Hall, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.