Research methods for the social sciences/ 
Wellington,Jerry 
 - London:  Continuum International Pub. Group,  2007. 
 - xi, 234 p 
<br/><br/><label>ISBN: </label>9780826485663 (hbk.) 
<br/><br/><label>Dewey Class. No.: </label>300.072  / WEL/R