Forouzan, Behrouz A. <br/><br/>
Data communications and networking / 
Behrouz A. Forouzan with Sophia Chung Fegan 
 - 4th ed. 
 - New York :  McGraw-Hill Higher Education,  2007 
 - 1134 p. :  ill. ;  24 cm. 
 - McGraw-Hill Forouzan networking series .
<br/><br/><label>ISBN: </label>0072967757 0071254420 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Computer networks