White, R. (1984). Physical geography. Macmillan.
Lua i Stíl Chicago (17ú heag.)White, Richard. Physical Geography. London: Macmillan, 1984.
Lua MLA (9ú heag.)White, Richard. Physical Geography. Macmillan, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.