Lua APA (7ú heag.)

Porteous, A. (1992). Dictionary of environmental science and technology (Rev. ed.). Wiley.

Lua i Stíl Chicago (17ú heag.)

Porteous, Andrew. Dictionary of Environmental Science and Technology. Rev. ed. Chichester, Eng: Wiley, 1992.

Lua MLA (9ú heag.)

Porteous, Andrew. Dictionary of Environmental Science and Technology. Rev. ed. Wiley, 1992.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.