APA (7th ed.) Citation

Töpfer, R., & Schur, E. (1912). Essai de Physiognomonie.

Chicago Style (17th ed.) Citation

Töpfer, Rudolf, and Ernst Schur. Essai De Physiognomonie. 1912.

MLA (9th ed.) Citation

Töpfer, Rudolf, and Ernst Schur. Essai De Physiognomonie. 1912.

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