Wrangham, Elizabeth <br/><br/>
Communications Revolution / 

 - London:  Harrap,  1967 
 - 32p.:  Photos;  23 cm. 
<br/><br/><label>ISBN: </label>024552147x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communications
<br/><br/><label>Dewey Class. No.: </label>384  / WRA