Gribbin, J. R. (1988). The one per cent advantage: The sociobiology of being human. Blackwell.
Chicago Style aipamenaGribbin, John R. The One Per Cent Advantage: The Sociobiology of Being Human. Oxford: Blackwell, 1988.
MLA aipamenaGribbin, John R. The One Per Cent Advantage: The Sociobiology of Being Human. Blackwell, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.