Não informado. (1980). Activities, Adaptation and Aging. Haworth Press.
Lua i Stíl Chicago (17ú heag.)Não informado. Activities, Adaptation and Aging. New York: Haworth Press, 1980.
Lua MLA (8ú heag.)Não informado. Activities, Adaptation and Aging. Haworth Press, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.