Communications / 
by the editors of Time-Life Books, Inc. 
 - Alexandria, VA :  Time-Life Books,  c1986. 
 - 128 p. :  col. ill. ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0809457008 0809457016 (lib. bdg.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Popular works.<br/>Data transmission systems--Popular works.<br/>MCE
<br/><br/><label>Dewey Class. No.: </label>384.3  / COM