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