APA (7th ed.) Citation

Hugo, V., Journet, R., & Robert, G. (1970). Mangeront-ils? Flammarion.

Chicago Style (17th ed.) Citation

Hugo, Victor, René Journet, and Guy Robert. Mangeront-ils? [Paris]: Flammarion, 1970.

MLA (9th ed.) Citation

Hugo, Victor, et al. Mangeront-ils? Flammarion, 1970.