Mutual aid
Subtitle: a factor of evolution
By: with a foreword by H.L. Beales.
Contributors: Beales, Hugh Lancelot, 1889-
Series: Pelican books -- A49
Publisher: Penguin Books
Published: 1939
Place of publication: Harmondsworth, Middx
Language: eng
Number of pages: 278
Subjects: Cooperation; Social groups
Notes: Republished, in part, from the Nineteenth century.

"First published (Pelican books) 1939."