Calhoun, J. B. (1983). Environment and population: Problems of adaptation : an experimental book integrating statements by 162 contributors. Praeger.
Lua i Stíl Chicago (17ú heag.)Calhoun, John B. Environment and Population: Problems of Adaptation : An Experimental Book Integrating Statements by 162 Contributors. New York: Praeger, 1983.
Lua MLA (9ú heag.)Calhoun, John B. Environment and Population: Problems of Adaptation : An Experimental Book Integrating Statements by 162 Contributors. Praeger, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.