APA (7th ed.) Citation

Conrad, J., Poradowska, M., & Rapin, R. (1966). Lettres (Edition critique.). Droz.

Chicago Style (17th ed.) Citation

Conrad, Joseph, Marguerite Poradowska, and Rene Rapin. Lettres. Edition critique. Geneve: Droz, 1966.

MLA (8th ed.) Citation

Conrad, Joseph, et al. Lettres. Edition critique. Droz, 1966.