Dyfyniad APA

De ZUANE, J. (1990). Handbook of drinking water quality.-- ed.2. John Wiley and Sons.

Dyfyniad Arddull Chicago

De ZUANE, John. Handbook of Drinking Water Quality.-- Ed.2. New York: John Wiley and Sons, 1990.

Dyfyniad MLA

De ZUANE, John. Handbook of Drinking Water Quality.-- Ed.2. John Wiley and Sons, 1990.

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