Ison, S., & Wall, S. (1993). Economics. longman ; Pitman publishing.
芝加哥风格引文Ison, Stephen, 与 Stuart Wall. Economics. London: longman ; Pitman publishing, 1993.
MLA引文Ison, Stephen, 与 Stuart Wall. Economics. longman ; Pitman publishing, 1993.
警告：这些引文格式不一定是100％准确.