U.S. Dept. of State. (1950). Point four: Cooperative program for aid in the development of economically underdeveloped areas. s.n.
Chicago-referens (17:e uppl.)U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. Washington: s.n, 1950.
MLA-referens (9:e uppl.)U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. s.n, 1950.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.