Wilkinson T S <br/><br/>
Methodology and techniques of social research Rev Ed 9 

 - 9 
 - Bombay  Himalaya Publishing House  1993 
 - 456 p. 
<br/><br/><label>ISBN: </label>8170407222 
<br/><br/><label>Dewey Class. No.: </label>300.72 WILM