Clark, A.P., <br/><br/>
Principles of digital data transmission 
A.P.clark. 
 - 2nd ed. 
 - London  Pentech Press  1983 
 - 300 pages:    illustration ;    25 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography:p.233-235 
<br/><br/><label>ISBN: </label>5727316133 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems