APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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