Rubin, Allen. <br/><br/>
Research methods for social work / 
Allen Rubin, Earl R. Babbie. 
 - 7th ed. 
 - Belmont, CA :  Thomson/Brooks/Cole,  c2011. 
 - xvii, 653 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780495811831 0495811831 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social service--Research
<br/><br/><label>Dewey Class. No.: </label>361.3