Miller, T. G., & Spoolman, S. E. (2017). Environmental science: Sustaining your world. National Geographic Learning/ Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Miller, Tyler G., agus Scott E. Spoolman. Environmental Science: Sustaining Your World. Chicago, IL: National Geographic Learning/ Cengage Learning, 2017.
Lua MLA (9ú heag.)Miller, Tyler G., agus Scott E. Spoolman. Environmental Science: Sustaining Your World. National Geographic Learning/ Cengage Learning, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.