APA (7th ed.) Citation

Rosenberg, A., & Rosen, G. (1939). Democracy and socialism: A contribution to the political history of the past 150 years. A. A. Knopf.

Chicago Style (17th ed.) Citation

Rosenberg, Arthur, and George Rosen. Democracy and Socialism: A Contribution to the Political History of the Past 150 Years. New York, London: A. A. Knopf, 1939.

MLA (8th ed.) Citation

Rosenberg, Arthur, and George Rosen. Democracy and Socialism: A Contribution to the Political History of the Past 150 Years. A. A. Knopf, 1939.