Mutual aid; a factor of evolution.

Bibliographic Details
Main Author:	Kropotkin, Petr Alekseevich, Kniaz' 1842-192
Other Authors:	Huxley, Thomas Henry 1825-1895. The struggle for existence
Format:	Book
Language:	English
Published:	Boston Extending orizons Books [1955].
Subjects:	Cooperation. Social groups. Sociology.