Hansen, A. H. (1946). America's role in the world economy. Penguin Books.
芝加哥风格引文Hansen, Alvin H. America's Role in the World Economy. New York: Penguin Books, 1946.
MLA引文Hansen, Alvin H. America's Role in the World Economy. Penguin Books, 1946.
警告：这些引文格式不一定是100％准确.