Century of progress in the natural sciences 1853-1953 
/ California Academy of Sciences 
 - San Francisco:  California Academy of Sciences,   1955 
 - x, 807p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sciences
<br/><br/><label>Subjects--Index Terms: </label>Internet  
<br/><br/><label>Universal Decimal Class. No.: </label>5(09)  / J5