Heller, H. R. (1974). International monetary economics. Prentice-Hall.
芝加哥风格引文Heller, H. Robert. International Monetary Economics. Englewood Cliffs ; London: Prentice-Hall, 1974.
MLA引文Heller, H. Robert. International Monetary Economics. Prentice-Hall, 1974.
警告：这些引文格式不一定是100％准确.