«L'aiuto reciproco è una legge della vita animale tanto quanto la lotta reciproca.»
Testo dell'edizione inclusa · inglese
«Mutual aid is as much a law of animal life as mutual struggle.»
— Pëtr Kropotkin, Mutual Aid: A Factor of Evolution
Cita quest'opera
- APAPëtr Kropotkin. (n.d.). Mutual Aid: A Factor of Evolution. SigPhi. https://sigphiai.com/it/works/peter-kropotkin/mutual-aid-a-factor-of-evolution
- MLAPëtr Kropotkin. "Mutual Aid: A Factor of Evolution." SigPhi, https://sigphiai.com/it/works/peter-kropotkin/mutual-aid-a-factor-of-evolution.
- ChicagoPëtr Kropotkin. Mutual Aid: A Factor of Evolution. SigPhi. https://sigphiai.com/it/works/peter-kropotkin/mutual-aid-a-factor-of-evolution.