Bell, G. (1976). Strategies for human settlements: Habitat and environment. University Press of Hawaii.
Chicago-viite (17. p.)Bell, Gwen. Strategies for Human Settlements: Habitat and Environment. Honolulu: University Press of Hawaii, 1976.
MLA-viite (9. p.)Bell, Gwen. Strategies for Human Settlements: Habitat and Environment. University Press of Hawaii, 1976.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.