Kropotkine.

MLA

Planche, Fernand, and Jean Delphy. Kropotkine. Paris: Ed. SLIM, 1948.

APA

Planche, F., & Delphy, J. (1948). Kropotkine. Paris: Ed. SLIM.

Chicago

Planche, Fernand, and Jean Delphy. Kropotkine. Paris: Ed. SLIM, 1948.