Não informado. (1970). Aging and Human Development. Greenwood Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Aging and Human Development. Westport, Conn: Greenwood Press, 1970.
Lua MLA (8ú heag.)Não informado. Aging and Human Development. Greenwood Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.