Horton, D <br/><br/>
THE AMERICAN ASSOCIATION OF SCIENTIFIC WORKERS.  [electronic resource] 

 -  Science (New York, N.Y.)  Jan 1939 
 - 58-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8075 
<br/><br/><label>Standard No.: </label>10.1126/science.89.2299.58-b  doi