Hellman Hal <br/><br/>
Transportation in the world of the future 
Hellman Hal 
 - Rev Ed. 
 - New York  Evans USA          1974 
 - 187p.  cm. 
 - World of the Future Series .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport Economics
<br/><br/><label>Dewey Class. No.: </label>X4, L4