Não informado. (1977). Early Human Development. Elsevier/North-Holland.
Lua i Stíl Chicago (17ú heag.)Não informado. Early Human Development. Amsterdam: Elsevier/North-Holland, 1977.
Lua MLA (8ú heag.)Não informado. Early Human Development. Elsevier/North-Holland, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.