Uekotter. The Turning Points of Environmental History. University of Pittsburgh Press.
Lua i Stíl Chicago (17ú heag.)Uekotter. The Turning Points of Environmental History. University of Pittsburgh Press.
Lua MLA (9ú heag.)Uekotter. The Turning Points of Environmental History. University of Pittsburgh Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.