Berry, E W <br/><br/>
THE AGE OF PICANTHROPUS ERECTUS.  [electronic resource] 

 -  Science (New York, N.Y.)  Mar 1913 
 - 418-20 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.37.950.418  doi