Dyfyniad APA

(2014). Wastewater engineering: Treatment and resource recovery. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Wastewater Engineering: Treatment and Resource Recovery. New York: McGraw-Hill, 2014.

Dyfyniad MLA

Wastewater Engineering: Treatment and Resource Recovery. New York: McGraw-Hill, 2014.

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