Rubin Allen. <br/><br/>
Research Methods For Social Work / Allen Rubin And Earl R. Babbie. 

 - 6th ed. 
 -  Belmont Ca : Thomson/Brooks/Cole C2008. 
 - XIX 668 P. : ILL. 24 CM. 
 -  0 .
<br/><br/><br/>ENG 
<br/><br/><label>ISBN: </label>9780495095156 (Student Ed.) 049509515X (Student Ed.)