Forouzan, Behrouz A.  _ <br/><br/>
Data communications and networking  _ 

 - 5th ed., 
 - Chennai  McGraw-Hill  2013-R2019 
 - xxxviii, 1226 p.  PB  24 cm. 
<br/><br/> Includes bibliographical references and index.  18th reprint 2019 
<br/><br/><label>ISBN: </label>9781259064753 
<br/><br/><label>Subjects--Personal Names: </label>   _ 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Computer networks<br/>Data transmission systems
<br/><br/><label>Dewey Class. No.: </label>004.6  / FOR