Black Uyless D Ed. <br/><br/>
Data comunications and distributed network 

 - 3 
 -  1993 
<br/><br/><label>Standard No.: </label>9046 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6,8(B),4, N3