APA (7th ed.) Citation

Proudhon, P., Dana, C. A., Greene, W. B., & Cohen, H. (1927). Proudhon's Solution of the social problem. Vanguard Press.

Chicago Style (17th ed.) Citation

Proudhon, P.-J., Charles A. Dana, William Batchelder Greene, and Henry Cohen. Proudhon's Solution of the Social Problem. New York: Vanguard Press, 1927.

MLA (9th ed.) Citation

Proudhon, P.-J., et al. Proudhon's Solution of the Social Problem. Vanguard Press, 1927.