Punch, Keith F <br/><br/>
Introduction to social research : quantitative and qualitative approaches 
/ by Keith F Punch 
 - India:  Sage Publication India Pvt Ltd  2000. 
 - xv,319p. 
<br/><br/><label>ISBN: </label>0761958134 
<br/><br/><label>Dewey Class. No.: </label>300.721  / PUN/I