Public Speaking Superstar
de Brian Tracy, Les Brown, Patricia Fripp, Laura Stack, Vanna Novak, Greg Reid, Chris Widener, Nido Qubein, Lorraine Howell, Ron White
de Brian Tracy, Les Brown, Patricia Fripp, Laura Stack, Vanna Novak, Greg Reid, Chris Widener, Nido Qubein, Lorraine Howell, Ron White
Made for Success, Inc. and Blackstone Audio, Inc. · ISBN 9781441752826
