APA (7th ed.) Citation

Denis, H., & De Greef, G. (1919). Discours philosophiques. Paris: Giard & Brière.

Chicago Style (17th ed.) Citation

Denis, Hector, and Guillaume De Greef. Discours Philosophiques. Paris: Giard & Brière, 1919.

MLA (8th ed.) Citation

Denis, Hector, and Guillaume De Greef. Discours Philosophiques. Paris: Giard & Brière, 1919.

Warning: These citations may not always be 100% accurate.