Burgess, Robert G. <br/><br/>
Key variables in social investigation / 
Robert G. Burgess. 
 - London :  Routledge & Kegan Paul,  1986. 
 - [320]p, cased 
<br/><br/> <p>BIBLIOGRAPHY: Includes index</p> 
<br/><br/><label>ISBN: </label>0710206216 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences - Methodology
<br/><br/><label>Dewey Class. No.: </label>310 BUR