Leonard Barton D <br/><br/>
Wellsprings to knowledge: building and sustaning the source of innovation 
Leonard Barton D 
 - New York  New York, Harvard Business School  1995 
 - 349p 
<br/><br/><label>ISBN: </label>0-87584-612-2 
<br/><br/><label>Source: </label>Textbook