(1967). Human variation and origins: An introduction to human biology and evolution. W. H. Freeman.
Citazione stile Chigago Style (17a edizione)Human Variation and Origins: An Introduction to Human Biology and Evolution. San Francisco, Calif: W. H. Freeman, 1967.
Citatione MLA (9a ed.)Human Variation and Origins: An Introduction to Human Biology and Evolution. W. H. Freeman, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.