Gupta, Prakash C. <br/><br/>
Data communications / 
Prakash C. Gupta 
 - [Eastern economy ed.] 
 - New Delhi:  Tata McGraw-Hill 
 - xiii, 475 p.;  24 cm. 
<br/><br/> Includes glossary and index 
<br/><br/><label>ISBN: </label>8120311183 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems