Telecommunications :  Databook 

 - Santa Clara, Ca. :  National Semiconductor Corporation,  1987 
 - p. v. ; 23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sistemas de transmisión de datos
<br/><br/><label>LC Class. No.: </label>TK 5105 T45  / 1987