APA引文

Gray,H Peter. (1985). Free trade or protection: A pragmatric analysis. Macmiollan Press.

Chicago Edition Citation

Gray,H Peter. Free Trade or Protection: A Pragmatric Analysis. London: Macmiollan Press, 1985.

MLA引文

Gray,H Peter. Free Trade or Protection: A Pragmatric Analysis. Macmiollan Press, 1985.

警告：這些引文格式不一定是100％准確.