Dictionary of scientific biography  edited under the auspices of American Council of Learned Societies. 

 - New York  Charles Scribner's Sons  1975 
 - **. 
<br/><br/> V.12. 
<br/><br/><label>ISBN: </label>0-684-12924-8. 
<br/><br/><label>Dewey Class. No.: </label>503  / D44D