Marshall, G. J. (Garry J.) <br/><br/>
Principles of digital communications / 
G. J. Marshall. 
 - London :  McGraw-Hill,  1980. 
 - ix, 170 pages :  illustration ;  23 cm. 
 - McGraw-Hill electrical engineering series. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0070840962 (pbk.)  4.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital communications.