Leakey, R. E. (1983). As Origens do Homem. Presença.
Lua i Stíl Chicago (17ú heag.)Leakey, Richard E. As Origens Do Homem. Presença, 1983.
Lua MLA (8ú heag.)Leakey, Richard E. As Origens Do Homem. Presença, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.