Royse, David D.  <br/><br/>
Research methods in social work 
David D. Royse 
 - Australia  Thomson Learning  2011 
 - 387 p.  23 cm. 
<br/><br/><label>ISBN: </label>9780840032270 
<br/><br/><label>Dewey Class. No.: </label>301.072  / ROY