Coombs  Catherine. Fegan  Sophia  Chung. Forouzan  Behrouz  A. <br/><br/>
Data Communications and Networking 

 - 2nd ed. 
 - Boston  McGraw Hill  2001 
 - 908 p. 
<br/><br/><label>ISBN: </label>0072322047 
<br/><br/><label>Subjects--Topical Terms: </label><br/>”DATA TRANSMISSION SYSTEM / COMPUTER NETWORKS”
<br/><br/><label>LC Class. No.: </label>TK5103.5  / F731D 2001