Proctor, Tony <br/><br/>
Essentials of marketing research 

 - 2nd ed. 
 - Harlow  Pearson Education  2000 
 - x,470p.   
<br/><br/>   
<br/><br/><label>ISBN: </label>0-273-64200-6 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Marketing research  Questionnaires 
<br/><br/><label>Dewey Class. No.: </label>658.8.012