Orvel Ray Wilson

Guerrilla Negotiating: Unconventional Weapons and Tactics to Get What You Want

Jay Conrad Levinson, Mark S. A. Smith, Orvel Ray Wilson, 1999 .

Guerrilla TeleSelling: New Unconventional Weapons and Tactics to Sell When You Can't be There in Person

Jay Conrad Levinson, Mark S. A. Smith, Orvel Ray Wilson, 1998 .