Miller, G. T. (1997). Environmental science: Working with the earth (6th ed.). Wadsworth.
Lua i Stíl Chicago (17ú heag.)Miller, G. Tyler. Environmental Science: Working with the Earth. 6th ed. Belmont: Wadsworth, 1997.
Lua MLA (9ú heag.)Miller, G. Tyler. Environmental Science: Working with the Earth. 6th ed. Wadsworth, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.