APA (7th ed.) Citation

Lacassin, F., Sigaux, G., & Simenon, G. (1973). Simenon. Plon.

Chicago Style (17th ed.) Citation

Lacassin, Francis, Gilbert Sigaux, and Georges Simenon. Simenon. [Paris]: Plon, 1973.

MLA (8th ed.) Citation

Lacassin, Francis, et al. Simenon. Plon, 1973.