Lua APA (7ú heag.)
Ward, P. D. (2009). The medea hypothesis: Is life on earth ultimately self-destructive? Princeton University Press.
Lua i Stíl Chicago (17ú heag.)
Ward, Peter Douglas. The Medea Hypothesis: Is Life on Earth Ultimately Self-destructive? Princeton: Princeton University Press, 2009.
Lua MLA (9ú heag.)
Ward, Peter Douglas. The Medea Hypothesis: Is Life on Earth Ultimately Self-destructive? Princeton University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.