APA (7th ed.) Citation

Simpson, K. (1938). The margin trader: A study in trade in securities and insecurity in trade. Harper.

Chicago Style (17th ed.) Citation

Simpson, Kemper. The Margin Trader: A Study in Trade in Securities and Insecurity in Trade. New York, London: Harper, 1938.

MLA (9th ed.) Citation

Simpson, Kemper. The Margin Trader: A Study in Trade in Securities and Insecurity in Trade. Harper, 1938.