Shay, William A <br/><br/>
Understanding data communications and networks 

 - 3rd ed. 
 - Hyderabad  BS PUblications  2019 
 - 766 p. 
<br/><br/> 4495 24/01/2022 PBA22/499 02/02/2022 UIET (SFS) 
<br/><br/><label>ISBN: </label> RS 695.00 
<br/><br/><label>Dewey Class. No.: </label>004.6 S29U(3)