Lua APA (7ú heag.)
Singer, P. (2000). A Darwinian Left: Politics, evolution, and cooperation. Yale University Press.
Lua i Stíl Chicago (17ú heag.)
Singer, Peter. A Darwinian Left: Politics, Evolution, and Cooperation. New Haven: Yale University Press, 2000.
Lua MLA (9ú heag.)
Singer, Peter. A Darwinian Left: Politics, Evolution, and Cooperation. Yale University Press, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.