Practice-oriented study guide for Rubin and Babbie's research methods for social work 
Allen Rubin 
 - 5th Edition 
 - Australia    Thomson Learning   ©2005. 
 - 258p; 
<br/><br/><label>ISBN: </label>0534632076 
<br/><br/><label>LC Class. No.: </label>HV 11  / ,R82 2005