Pittman. Evolution of Mind, Brain, and Culture. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Pittman. Evolution of Mind, Brain, and Culture. University of Pennsylvania Press.
Lua MLA (9ú heag.)Pittman. Evolution of Mind, Brain, and Culture. University of Pennsylvania Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.