Rumbauskas, F. J. (2007). Selling sucks: How to stop selling and start getting prospects to buy! Hoboken, N.J: John Wiley & Sons, Inc.
استشهاد بنمط شيكاغوRumbauskas, Frank J. Selling Sucks: How to Stop Selling and Start Getting Prospects to Buy! Hoboken, N.J: John Wiley & Sons, Inc, 2007.
MLA استشهادRumbauskas, Frank J. Selling Sucks: How to Stop Selling and Start Getting Prospects to Buy! Hoboken, N.J: John Wiley & Sons, Inc, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.