PERGAMON INFOTECH <br/><br/>
COMMUNICATIONS STANDARDS STATE OF THE ART REPORT 14:3 

 - ENGLAND  Pergamon Press  1986 
 - xi+488p., 30x21cms. 
<br/><br/><label>ISBN: </label>008-034-092-X 
<br/><br/><label>Dewey Class. No.: </label>621.382 P439