Brown, W. A., & Opie, R. (1953). American foreign assistance. Brookings Institute.
芝加哥风格引文Brown, William Adams, 与 Redvers Opie. American Foreign Assistance. Wash.: Brookings Institute, 1953.
MLA引文Brown, William Adams, 与 Redvers Opie. American Foreign Assistance. Brookings Institute, 1953.
警告：这些引文格式不一定是100％准确.