Lawrence, M., & Johnson, S. (1998). If you're not out selling, you're being outsold. New York: John Wiley & Sons.
Chicago Style CitationLawrence, Michael, i Steve Johnson. If You're Not Out Selling, You're Being Outsold. New York: John Wiley & Sons, 1998.
Cita MLALawrence, Michael, i Steve Johnson. If You're Not Out Selling, You're Being Outsold. New York: John Wiley & Sons, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.