Delbert C. Miller, Neil J. Salkind <br/><br/>
Handbook of Research Design and Social Measurement. 

 - 6th   
 -  Sage Publications  2002 
 - 786 
<br/><br/><label>ISBN: </label>0-7619-2046-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychiatry
<br/><br/><label>National Library of Medicine Call No.: </label>WM 40 M 2002