White, L. C. (1936). Geography: An introduction to human ecology. D. Appleton Century Company.
Lua i Stíl Chicago (17ú heag.)White, Longdon C. Geography: An Introduction to Human Ecology. New York: D. Appleton Century Company, 1936.
Lua MLA (9ú heag.)White, Longdon C. Geography: An Introduction to Human Ecology. D. Appleton Century Company, 1936.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.