APA (7 ম সংস্করণ) উদ্ধৃতি

U.S. Dept. of State. (1950). Point four: Cooperative program for aid in the development of economically underdeveloped areas. s.n.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. Washington: s.n, 1950.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

U.S. Dept. of State. Point Four: Cooperative Program for Aid in the Development of Economically Underdeveloped Areas. s.n, 1950.