Mckinney, M. L., & Schoch, R. M. (1998). Environmental science: Systems and solutions. Jones and Bartlett Publishers.
Lua i Stíl Chicago (17ú heag.)Mckinney, Michael L., agus Robert M. Schoch. Environmental Science: Systems and Solutions. Sudbury: Jones and Bartlett Publishers, 1998.
Lua MLA (9ú heag.)Mckinney, Michael L., agus Robert M. Schoch. Environmental Science: Systems and Solutions. Jones and Bartlett Publishers, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.