Graedel, T. (1995). Industrial ecology/T.E Graedel, B.R Allenby. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Graedel, T.E. Industrial Ecology/T.E Graedel, B.R Allenby. Prentice-Hall, 1995.
Lua MLA (8ú heag.)Graedel, T.E. Industrial Ecology/T.E Graedel, B.R Allenby. Prentice-Hall, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.