Kemp, D. D. (1990). Global environmental issues: A climatological approach. Routledge.
Lua i Stíl Chicago (17ú heag.)Kemp, David D. Global Environmental Issues: A Climatological Approach. London: Routledge, 1990.
Lua MLA (9ú heag.)Kemp, David D. Global Environmental Issues: A Climatological Approach. Routledge, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.