Telecom Video Productions. <br/><br/>
Digital data service  [VHS Tapes]. 
Telecom Video Productions. 
<br/><br/><label>ISBN: </label> 0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Computer networks.<br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>TK/5105  / TEL