Dyfyniad APA

ebrary, Inc, & Wang, Y. (2013). Water quality: Indicators, human impact and environmental health. Nova Publishers.

Dyfyniad Arddull Chicago

ebrary, Inc, and You-Gan Wang. Water Quality: Indicators, Human Impact and Environmental Health. New York: Nova Publishers, 2013.

Dyfyniad MLA

ebrary, Inc, and You-Gan Wang. Water Quality: Indicators, Human Impact and Environmental Health. Nova Publishers, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.