Dillon, Willams R. <br/><br/>
Marketing research in a marketing environment. 

 - 3rd ed. 
 - U.S.A. :  Richard D Irwin Inc,  1987. 
 - xxii, 760 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0256155542 
<br/><br/><label>Dewey Class. No.: </label>658.83 DIL