Gupta.C,Prakash C <br/><br/>
Data Communications /  
praksh C Gupta 
 - New Delhi  Prentice Hall  1996 
 - xiii,475p 
<br/><br/>Data Communication Concepts and Terminology (Page-1), Transmission Media (Page-21), Modems and Data Multiplexers (Page-73), Error Control (Page-122), References Models for Open Systems Interconnection (Page-143), The Physical Layer (Page-165), The Data Link Layer (Page-195), HDLC High Level Data Link Control (Page-227), The Network Layer (Page-253), CCITT X.25 Interface (Page-286), Local Area  Networks (Page-324), Media Access Control in local Area Networks (Page-342), Internetworking (Page-369), The Transport and Upper OSI Layers (Page-399). 
<br/><br/><label>ISBN: </label>8120311183 
<br/><br/><label>Dewey Class. No.: </label>004.6,GUP