(1977). Human biology: An introduction to human evolution, variation, growth and ecology. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Human Biology: An Introduction to Human Evolution, Variation, Growth and Ecology. London: Oxford University Press, 1977.
Lua MLA (9ú heag.)Human Biology: An Introduction to Human Evolution, Variation, Growth and Ecology. Oxford University Press, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.