Walkwer O C <br/><br/>
Marketing strategy: Planning and implementaion 
Walkwer O C; Boyd H W And Others 
 - USA  USA, Irwin  1996 
 - 392p 
<br/><br/><label>ISBN: </label>0-256-13692-0 
<br/><br/><label>Source: </label>Textbook