Kirkpatrick, Donald L. <br/><br/>
Evaluating Training Programs : The Four Levels. 

 -  Berret-Koehler  1994 
 - XV, 229 P. 24 CM. 
<br/><br/><label>ISBN: </label>1800152494 
<br/><br/><label>Dewey Class. No.: </label>658.312404 KIR 1994