Mobley, Lou <br/><br/>
Beyond - IBM 

 - London:  Penguin  Books,  1989 
 - xxiii,253p.:  ill.;  20cm. 
<br/><br/><label>ISBN: </label>0-14-010330-9 
<br/><br/><label>LC Class. No.: </label>MATH HD9696.C64L4863