Khan, Mahmood Ashraf <br/><br/>
Understanding packet switching and frame relay  [Book] / 
Dr. Mahmood Ashraf Khan. 
 -  2003. 
 - 117 p. ;  14 cm. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>9698627014 (paperback) 9789698627014 (paperback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Packet switching (Data transmission)--communications engineering.<br/>Telecommunication--Switching systems.
<br/><br/><label>Dewey Class. No.: </label>621.38216