Heppner P. Paul. <br/><br/>
Research Design In Counseling /P. Paul Heppner. 

 - 3rd ed. 
 -  Belmont Ca : Thomson Brooks/Cole C2008. 
 - XXI 666 P. : ILL. 25 CM. 
 -  0 .
<br/><br/><br/>ENG 
<br/><br/><label>ISBN: </label>9780495603641 (Pbk)