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. 
 - 001.64/404 .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0131964690 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>001.64/404