McLuhan, Marshall,  1911-1980 <br/><br/>
Understanding media :  the extensions of man / 
Marshall McLuhan 
 - vi, 392 pages ;  20 cm. 
<br/><br/><label>ISBN: </label>9780415253970 (paperback) 0415253977 (paperback) 041525549X (hardback) 0349122962 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media<br/>Communication<br/>Communication and technology
<br/><br/><label>LC Class. No.: </label>P90