Não informado. (1925). Annals of Eugenics. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Annals of Eugenics. London: Cambridge University Press, 1925.
Lua MLA (8ú heag.)Não informado. Annals of Eugenics. Cambridge University Press, 1925.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.