APA (7th ed.) Citation

Hugo, V., Journet, R., & Robert, G. (1965). Boîte aux lettres. Flammarion.

Chicago Style (17th ed.) Citation

Hugo, Victor, René Journet, and Guy Robert. Boîte Aux Lettres. Paris: Flammarion, 1965.

MLA (9th ed.) Citation

Hugo, Victor, et al. Boîte Aux Lettres. Flammarion, 1965.