BLACK, Uyless D. <br/><br/>
The X series recommendations  standards for data communications 
Uyless D. BLACK 
 - 2nd. ed. 
 - New York  McGraw-Hill  1995 
 - xvii,333p. 
 - McGraw-Hill series-computer communications .
<br/><br/><label>ISBN: </label>70055939  US