Bertness, M. D. (2020). A brief natural history of civilization: Why a balance between cooperation & competition is vital to humanity. Yale University Press.
Lua i Stíl Chicago (17ú heag.)Bertness, Mark D. A Brief Natural History of Civilization: Why a Balance Between Cooperation & Competition Is Vital to Humanity. New Haven ; London: Yale University Press, 2020.
Lua MLA (9ú heag.)Bertness, Mark D. A Brief Natural History of Civilization: Why a Balance Between Cooperation & Competition Is Vital to Humanity. Yale University Press, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.