Harvey Mackay (1996). “Swim with the Sharks Without Being Eaten Alive: Outsell, Outmanage, Outmotivate, & Outnegotiate Your Competition”, Ballantine Books
Harvey Mackay (1996). “Swim with the Sharks Without Being Eaten Alive: Outsell, Outmanage, Outmotivate, & Outnegotiate Your Competition”, Ballantine Books