FEDERAL INFO PROCESSING STD <br/><br/>
SYNCHRONOUS HIGH SPEED DATA SIGNALLING RATES BETWEEN D.T.E AND D.C.E 

 - 1 
 - WASHINGTON  OTH  1975 
 -  4 
<br/><br/><label>ISBN: </label>NCST 
<br/><br/><label>Dewey Class. No.: </label>259