Miller, G. T., & Spoolman, S. E. (2013). Environmental science (14th edition.). Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Miller, G. Tyler, agus Scott E. Spoolman. Environmental Science. 14th edition. Andover: Cengage Learning, 2013.
Lua MLA (8ú heag.)Miller, G. Tyler, agus Scott E. Spoolman. Environmental Science. 14th edition. Cengage Learning, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.