Lua APA (7ú heag.)
Boyd, R., & Silk, J. B. (2003). How humans evolved (3rd ed.). Norton.
Lua i Stíl Chicago (17ú heag.)
Boyd, Robert, agus Joan B. Silk. How Humans Evolved. 3rd ed. New York: Norton, 2003.
Lua MLA (9ú heag.)
Boyd, Robert, agus Joan B. Silk. How Humans Evolved. 3rd ed. Norton, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.