Davis, K., & Bernstam, M. S. (1991). Resources, environment, and population: Present knowledge, future options. Population Council : Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Davis, Kingsley, agus Mikhail S. Bernstam. Resources, Environment, and Population: Present Knowledge, Future Options. New York: Population Council : Oxford University Press, 1991.
Lua MLA (8ú heag.)Davis, Kingsley, agus Mikhail S. Bernstam. Resources, Environment, and Population: Present Knowledge, Future Options. Population Council : Oxford University Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.