Barber, W. J. (1967). A History of economic thought. Penguin books.
芝加哥风格引文Barber, William J. A History of Economic Thought. England: Penguin books, 1967.
MLA引文Barber, William J. A History of Economic Thought. Penguin books, 1967.
警告：这些引文格式不一定是100％准确.