Howell, John P. and Costley, Dan L.  <br/><br/>
Undetanding behavio for effective leadehip  
Howell, John P. and Costley, Dan L.  
 - 2nd ed.  
 -   Prentice Hall  2008 
<br/><br/><label>Dewey Class. No.: </label>158.7  / T08 HOW.C