Delens, A. H. R. <br/><br/>
Principles of market research / 
by A. H. R. Delens 
 - London  Crosby Lockwood Staples  1950 
 - 254p  ill;  21cm 
<br/><br/>Includes Bibliographical references and index 
<br/><br/><label>ISBN: </label>0258966807 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing
<br/><br/><label>Dewey Class. No.: </label>658.8  / DEL