Division of Education, Russell Sage Foundation, activities and publications. 
Leonard P. Ayres, PH.D., director. 
 - New York City,  Division of Education of the Russell Sage Foundation,  1913. 
 - 7 p.  23 cm. 
 - [Russell Sage Foundation, New York] Bulletin  E .
<br/><br/>
<br/><br/><label>LCCN: </label>e  13001044  
<br/><br/><label>LC Class. No.: </label>L13  / .R8