FREER, John R. <br/><br/>
Computer communications and  networks 

 -  London, Pitman  1988 
 - 432 p. 
<br/><br/><label>ISBN: </label>0000273627891 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission : computer networks
<br/><br/><label>Dewey Class. No.: </label>004.6  / F62