APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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