Knaster, Barbara.  <br/><br/>
Presenting Magic Cap :   A Guide to General. Magic's Revolutionary Communicator Software. /  
Knaster Barbara. 
 - Reading, Massachusetts :   Addison-Wesley,   1994. 
 - XVIII, 254 s.:   il.;   21 cm. 
<br/><br/><label>ISBN: </label>020140740X