Trivers, R. (2002). Natural selection and social theory: Selected papers of Robert Trivers. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Trivers, Robert. Natural Selection and Social Theory: Selected Papers of Robert Trivers. Oxford ; New York: Oxford University Press, 2002.
Lua MLA (9ú heag.)Trivers, Robert. Natural Selection and Social Theory: Selected Papers of Robert Trivers. Oxford University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.