Yegidis, Bonnie L. <br/><br/>
Research methods for social workers / 
Bonnie L. Yegidis, Robert W. Weinbach and Laura L. Myers 
 - 7th ed. 
 - Boston :  Allyn & Bacon,  2012. 
 - xix, 338 p. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780205820115  RM301.19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social service--Research--Methodology.