Dyfyniad APA

DAVIS, M. L. (2014). Principles of environmental engineering and science. McGaw-Hill.

Dyfyniad Arddull Chicago

DAVIS, Mackenzie L. Principles of Environmental Engineering and Science. McGaw-Hill, 2014.

Dyfyniad MLA

DAVIS, Mackenzie L. Principles of Environmental Engineering and Science. McGaw-Hill, 2014.

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