Mutual aid : a factor of evolution

MLA

Kropotkin, Petr Alekseevič. Mutual Aid : a Factor of Evolution. London: W. Heinemann, 1902.

APA

Kropotkin, P. Alekseevič. (1902). Mutual aid : a factor of evolution. London: W. Heinemann.

Chicago

Kropotkin, Petr Alekseevič, Mutual Aid: A Factor of Evolution. London: W. Heinemann, 1902.