Tolfree, W. (1971). Questions & answers on monetary theory. Issac Pitman.
芝加哥风格引文Tolfree, W. Questions & Answers on Monetary Theory. London: Issac Pitman, 1971.
MLA引文Tolfree, W. Questions & Answers on Monetary Theory. Issac Pitman, 1971.
警告：这些引文格式不一定是100％准确.