Gelber, Stan, <br/><br/>
Data communications today :  networks, the Internet, and the Enterprise / 
Stan Gelber. 
 - Second edition. 
 - xiii, 465 pages :  illustrations, maps ;  25 cm. 
<br/><br/> Rev. ed. of : Introduction to data communications. 1991. 
<br/><br/>Includes bibliographical references (p. 440-441) and index. 
<br/><br/><label>ISBN: </label>0138640009 9780138640002  Hadiah 
<br/><br/><label>LCCN: </label>97-015155 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.