Negotiations regarding proposed agreement between the United States and Mexico confirming use of waters of the lower Colorado and lower Rio Grande Rivers
[1133] The Under Secretary of State (Welles) to the Mexican Ambassador (Castillo Nájera)
Washington, December 27, 1939.
711.1216A/1756
[1134] The Mexican Ambassador (Castillo Nájera) to the Under Secretary of State (Welles)
Washington, January 19, 1940.
711.1216A/1803
[1136] The Under Secretary of State (Welles) to the Mexican Ambassador (Castillo Nájera)
Washington, February 15, 1940.
711.1216A/1803
[1138] The Mexican Ambassador (Castillo Nájera) to the Secretary of State
Washington, May 18, 1940.
711.1216A/1935
[1139] The Acting Secretary of State to the Mexican Ambassador (Castillo Nájera)
Washington, July 19, 1940.
711.1216A/1935