Duggan, Stephen. <br/><br/>
Ploughing the home farm. 

 - New York-US :   Institute International Education,   1937. 
 - páginas 3-15 
 - Irregular 
 - Vol. 13, no. 3(Dec. 1937) 
 - News. Bulletin ;   no. 3 .
 - Institute of International Education. .