APA (7th ed.) Citation

Sorge, F. A. (1910). Socialism and the worker (New ed.). London: Twentieth Century Press.

Chicago Style (17th ed.) Citation

Sorge, Friedrich Adolph. Socialism and the Worker. New ed. London: Twentieth Century Press, 1910.

MLA (8th ed.) Citation

Sorge, Friedrich Adolph. Socialism and the Worker. New ed. London: Twentieth Century Press, 1910.