Duggan, Stephen. <br/><br/>
The future of american schools abroad. 

 - New York-US :   Institute International Education,   1934. 
 - páginas 2-3 
 - Irregular 
 - Vol. 9, no. 6(Mar. 1934) 
 - News. Bulletin ;   no. 6 .
 - Institute of International Education. .