APA (7th ed.) Citation

Marshall, A., & Marshall, A. (1930). The pure theory of foreign trade. The London School of Economics and Political Science.

Chicago Style (17th ed.) Citation

Marshall, Alfred, and Alfred Marshall. The Pure Theory of Foreign Trade. London: The London School of Economics and Political Science, 1930.

MLA (9th ed.) Citation

Marshall, Alfred, and Alfred Marshall. The Pure Theory of Foreign Trade. The London School of Economics and Political Science, 1930.