Sarch, Ray <br/><br/>
Basic guide to data communications 

 -  Mcgraw Hill  New York  1990 
 - 349 
<br/><br/><br/>En 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Basic guide to data communications
<br/><br/><label>Dewey Class. No.: </label>38403  /  SAR