Loomis, Mary E. S. <br/><br/>
Data communications 
Mary E.S. Loomis 
 - Englewood Cliffs, N.J  Prentice-Hall  c1983 
 - xi, 212 p.  ill.  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems
<br/><br/><label>Dewey Class. No.: </label>001.64  / 404