CONVERGENCE:computers, communucations, and office automation 

 - ENGLAND  INFOTECH INTERNATIONAL LIMITED  1979 
<br/><br/> INCLUDES INDEX 
<br/><br/><label>ISBN: </label>855395605 
<br/><br/><label>Source: </label>B-19973 
<br/><br/><label>LC Class. No.: </label>HF5548.2.  / C66