Forbes, Jean. <br/><br/>
Communications and networks / 
by Jean Forbes, James Ross. 
 - London :  Heinemann Educational,  1978. 
 - 80 p :  ill. ;  25 cm. 
 - Place and people ;  3. .
 - Place and people ;  3. .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0435346946 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication and traffic.<br/>Transportation.