Peppers, D., & Rogers, M. (1997). The one to one future: Building relationships one customer at a time (1st Currency pbk. ed.). Currency Doubleday.

Peppers, Don, and Martha Rogers. The One to One Future: Building Relationships One Customer at a Time. 1st Currency pbk. ed. New York: Currency Doubleday, 1997.

Peppers, Don, and Martha Rogers. The One to One Future: Building Relationships One Customer at a Time. 1st Currency pbk. ed. Currency Doubleday, 1997.