The Chaco Peace Conference : report of the delegation of the United States of America to the peace conference held at Buenos Aires July 1, 1935-January 23, 1939
"Treaty of peace, friendship, and boundaries between the republics of Bolivia and Paraguay": p. 148-151
Delegates of the United States: Hugh Gibson, July to Novermber, 1935; Spruille Braden, November 13, 1935, to October 15, 1938; Alexander W. Weddell, October, 1938, to January, 1939. The report is signed by Spruille Braden