Ryan, William T. <br/><br/>
Principles of marketing 
Coordinating editor Roger H. Hermanson & Dow Jones-Irwin 
 - 3rd ed.  
 - USA  Dow Jones-Irwin  1980 
 - xii, 255 p.  
<br/><br/> Includes index  
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Marketing 
<br/><br/><label>Dewey Class. No.: </label>658.8 RYA