Duggan, Stephen P. <br/><br/>
Some reflections on international education. 

 - New York-US :   The institute of international education,   1932. 
 - páginas 3-4 
 - Irregular 
 - Vol.8, no.2 (Nov.1932) 
 - News bulletin  ;   no.2 .
 - The institute of international education. .