Martin, James, <br/><br/>
Telecommunications and the computer / 
James Martin. 
 - 3rd ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1990. 
 - xvi, 720 p. :  ill. (some col.) ;  25 cm. 
<br/><br/> "A James Martin book"--Cover. 
<br/><br/><label>ISBN: </label>0139026444 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.<br/>Data transmission systems.
<br/><br/><label>Dewey Class. No.: </label>001.64  / MAR N92T