Mutual aid
Subtitle: a factor of evolution
By: by Petr Alekseevich Kropotkin; foreward by Ashley Montagu. "The struggle for existence" / by Thomas H. Huxley
Contributors: Montagu, Ashley, 1905-; Huxley, Thomas Henry, 1825-1895.
Publisher: Extending Horisons Books
Published: 1955
Place of publication: Boston
Number of pages: 362
Subjects: Cooperation; Social groups; Sociology
Notes: Bibliography: p. 20 (first group).

Bibliographical footnotes.