Bell, G. (1976). Strategies for human settlements: Habitat and environment. University Press of Hawaii.
Lua i Stíl Chicago (17ú heag.)Bell, Gwen. Strategies for Human Settlements: Habitat and Environment. Honolulu: University Press of Hawaii, 1976.
Lua MLA (9ú heag.)Bell, Gwen. Strategies for Human Settlements: Habitat and Environment. University Press of Hawaii, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.