Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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