Futrell, C. (2005). ABC's of relationship selling through service (8e.). New York: McGraw-Hill/Irwin.
Trích dẫn kiểu ChicagoFutrell, Charles. ABC's of Relationship Selling Through Service. 8e. New York: McGraw-Hill/Irwin, 2005.
MLA CitationFutrell, Charles. ABC's of Relationship Selling Through Service. 8e. New York: McGraw-Hill/Irwin, 2005.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.