Brenner Joel Glenn <br/><br/>
Emperors of chocolate: Inside the secret world of Hershey and Mars 
Brenner Joel Glenn 
 - New York  New York, Random  1999 
 - xiv,367 
<br/><br/><label>ISBN: </label>0-7679-0457-5 
<br/><br/><label>Source: </label>Textbook