Brijiendra,Singh <br/><br/>
Data communications and computer networks 
Brijiendra Singh 
 - 2nd ed 
 - New Delhi  PHI  c2009 
 - xiv, 357 p. : ill. ; 24 cm. 
<br/><br/> Includes bibliographical references (p. 399-400) and index 
<br/><br/><label>ISBN: </label>9788120329690 
<br/><br/><label>ISSN: </label>2003043357 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Data transmission systems<br/>OSI (Computer network standard)
<br/><br/><label>Dewey Class. No.: </label>004.6 BRI