Egerton, Sir A C  <br/><br/>
Energy in the service of man 
/ UNESCO  
 - London:   UNESCO,   1951 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civilization 
<br/><br/><label>Subjects--Index Terms: </label>Energy  
<br/><br/><label>Universal Decimal Class. No.: </label>620.92  / J1