Handbook of data communications / 
the National Computing Centre. 
 - 2nd ed. 
 - Manchester :  NCC Blackwell,  1998 
 - iii, 463 p. :  ill. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>1855540029 9781855540026 9781902343129 
<br/><br/><label>LCCN: </label>93192592  
<br/><br/><label>Nat. Bib. No.: </label>GB93-37712 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems--Handbooks, manuals, etc.
<br/><br/><label>Subjects--Index Terms: </label>Data transmission 
<br/><br/><label>LC Class. No.: </label>TK5105  / .H355 1993 
<br/><br/><label>Dewey Class. No.: </label>004.6