Burgess, Robert G (Editor) <br/><br/>
Key variables in social investigation 

 - London  Routledge & Kegan Paul  1986 
 - xi,276p. 
<br/><br/><label>ISBN: </label> UKP 7.95 
<br/><br/><label>Source: </label> UKP 7.95 
<br/><br/><label>Dewey Class. No.: </label>301.072 KEY