APA (7th ed.) Citation

Sergent , A., & Harmel , C. (1949). Histoire de l'anarchie. Le Portulan.

Chicago Style (17th ed.) Citation

Sergent , Alain, and Claude Harmel. Histoire De L'anarchie. Paris: Le Portulan, 1949.

MLA (8th ed.) Citation

Sergent , Alain, and Claude Harmel. Histoire De L'anarchie. Le Portulan, 1949.

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