Miller, G. T. (2006). Environmental science: Working with the earth (11th ed.). Thomson Brooks/Cole Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Miller, G. Tyler. Environmental Science: Working with the Earth. 11th ed. Belmont, CA ; New Delhi: Thomson Brooks/Cole Cengage Learning, 2006.
Lua MLA (8ú heag.)Miller, G. Tyler. Environmental Science: Working with the Earth. 11th ed. Thomson Brooks/Cole Cengage Learning, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.