Larry, W., Hersch, W.(1994).Stop selling, start partnering : the new thingking about finding and keeping customers / Larry Wilson, Hersch Wilson .Essex Junction:Omneo.
Gaya MLA
Wilson, Larry., Wilson, Hersch."Stop selling, start partnering : the new thingking about finding and keeping customers / Larry Wilson, Hersch Wilson".Essex Junction:Omneo,1994.Textbook.