Sarch, Ray <br/><br/>
Basic Guide to Data Communications/ 
Ray Sarch 
 - New York :  Mcgraw Hill Information System Company,  1985 
<br/><br/><label>ISBN: </label>0076056031 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Data communications<br/>Data Transmission system
<br/><br/><label>Dewey Class. No.: </label>621.38  / SAR