Guha, R. (2000). Environmentalism: Global history. Penguin.
Lua i Stíl Chicago (17ú heag.)Guha, Ramachandra. Environmentalism: Global History. Gurgaon: Penguin, 2000.
Lua MLA (9ú heag.)Guha, Ramachandra. Environmentalism: Global History. Penguin, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.