Crandall, R. (2003). Marketing your services: For people who hate to sell (Updated and expanded ed.). McGraw Hill.
Chicago ZitierstilCrandall, Rick. Marketing Your Services: For People Who Hate to Sell. Updated and expanded ed. New Jersey: McGraw Hill, 2003.
MLA ZitierstilCrandall, Rick. Marketing Your Services: For People Who Hate to Sell. Updated and expanded ed. McGraw Hill, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.