Royse, David D. <br/><br/>
Research methods in social work / 
David Royse. 
 - 2-nd ed. 
 - Chicago :  Nelson-Hall Publishers,  c1995.. 
 - xii, 357 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0-8304-1409-6 
<br/><br/><label>Nat. Bib. No.: </label>GB A3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social service--Research--Methodology.