Balkan,   Eric  <br/><br/>
The Directory Of Software Publishers  
/ by Eric Balkan  
 - New York:   Van Nostrand Reinhold Company;   1983.  
 - ix,309p.  
<br/><br/><label>ISBN: </label>0442214294  
<br/><br/><label>Dewey Class. No.: </label>338.7   / BAL/T