Rumbauskas, F. J. (2007). Selling Sucks How to Stop Selling and Start Getting Prospects to Buy. John Wiley & Sons.
Chicago-referens (17:e uppl.)Rumbauskas, Frank J. Selling Sucks How to Stop Selling and Start Getting Prospects to Buy. John Wiley & Sons, 2007.
MLA-referens (8:e uppl.)Rumbauskas, Frank J. Selling Sucks How to Stop Selling and Start Getting Prospects to Buy. John Wiley & Sons, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.