Stallings, William <br/><br/>
Data and computer communications 

 - 4th ed. 
 - New York:   Macmillan Publishing Company,   1991 
 - xv, 875p. 
<br/><br/><label>ISBN: </label>0-02-415441-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information technology
<br/><br/><label>Subjects--Index Terms: </label>Data Communication 
<br/><br/><label>Universal Decimal Class. No.: </label>D 681.324/.325   / N4