Walton, A C <br/><br/>
THE DES MOINES SESSION OF THE ACADEMY CONFERENCE.  [electronic resource] 

 -  Science (New York, N.Y.)  Feb 1930 
 - 147-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.71.1832.147-a  doi