APA (7th ed.) Citation

Proudhon , P., Guilloux , L., Sainte-Beuve , C., & Halévy , D. (1929). Lettres de Pierre Joseph Proudhon. Grasset.

Chicago Style (17th ed.) Citation

Proudhon , Pierre-Joseph, Louis Guilloux , Charles-Augustin Sainte-Beuve , and Daniel Halévy. Lettres De Pierre Joseph Proudhon. Paris: Grasset, 1929.

MLA (8th ed.) Citation

Proudhon , Pierre-Joseph, et al. Lettres De Pierre Joseph Proudhon. Grasset, 1929.