Research and evaluation in counseling / 
Erford, Bradley T. 
 - 2nd ed. 
 - USA :  Cengage Learning,  2015. 
 - xix, 478 p.: ill.; 26 cm. 
<br/><br/>Includes references, name index, subject index 
<br/><br/><label>ISBN: </label>9781285454894 
<br/><br/><label>Dewey Class. No.: </label>C 158.3 Er37 2015