Beck, Don Edward <br/><br/>
Spiral Dynamics  Mastering Values, Leadership, and Change 
Don Edward Beck, Christopher C. Cowan 
 - USA :  Balackwell Business,  c1996. 
 - 331 p.:  ill.; 
<br/><br/><label>ISBN: </label>1557869405 
<br/><br/><label>Dewey Class. No.: </label>658.406  / BEC/COW/SPI