Mutual aid, a factor of evolution.
By: Foreword by Ashley Montagu, and "The struggle for existence" by Thomas H. Huxley.
Contributors: Huxley, Thomas Henry, 1825-1895.; Paul Avrich Collection (Library of Congress)
Publisher: Extending Horizons Books
Published: 1955
Place of publication: Boston
Language: eng
Number of pages: 362
Subjects: Cooperation; Social groups; Sociology
Notes: Bibliography: p. [20] (first group) Bibliographical footnotes.