U.S. Dept. of State. (1950). Point four: Cooperative program for aid in the development of economically underdeveloped areas. s.n.
Cita Chicago Style (17a ed.)U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. Washington: s.n, 1950.
Cita MLA (9a ed.)U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. s.n, 1950.
Precaución: Estas citas no son 100% exactas.