Conference on problems of aging: transaction of the twelfth conference,  6 7 February,  1950,  New York  
sponsored by the Josiah Macy Foundation.  
 - New York   McGrawHill  1960 
 - xxiii, 690p.: ill.; 23cm. 
<br/><br/><label>Dewey Class. No.: </label>616.0563  / P81T