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Mutual Aid: A Factor of Evolution [Buy it!] | Kropotkin, Petr Alekseevich | USD 12.95 (Wed May 29 00:01:15 2024) | Abebooks | Weller Book Works, A.B.A.A. | ISBN10: 0486449130, ISBN13: 9780486449135, [publisher: Dover Publications, INC.] Softcover [Salt Lake City, UT, U.S.A.] [Publication Year: 2006] |