Kropotkine , P., & AVRICH Paul. (1972). Mutual aid: A factor of evolution. New York University Press.
Chicago Style (17th ed.) CitationKropotkine , Pierre, and AVRICH Paul. Mutual Aid: A Factor of Evolution. New York University Press, 1972.
MLA (8th ed.) CitationKropotkine , Pierre, and AVRICH Paul. Mutual Aid: A Factor of Evolution. New York University Press, 1972.
Warning: These citations may not always be 100% accurate.