HENN,M. ; WEINSTEIN,M. ;FOARD,N. <br/><br/>
A Critical Introduction to Social Research 

 - 2nd ed. 
 -  New Delhi:Sage Publications  2009 
 - 356 p. 
<br/><br/><label>ISBN: </label>9788132105787 
<br/><br/><label>Dewey Class. No.: </label>300.72  / H25