APA (7th ed.) Citation

Martin Du Gard, R., & Gilbert, S. (1939). The Thibaults. The Viking Press.

Chicago Style (17th ed.) Citation

Martin Du Gard, Roger, and Stuart Gilbert. The Thibaults. New York: The Viking Press, 1939.

MLA (9th ed.) Citation

Martin Du Gard, Roger, and Stuart Gilbert. The Thibaults. The Viking Press, 1939.