Dyfyniad APA

Water Environment Federation. (1993). Industrial wastewater. Water Environment Federation.

Dyfyniad Arddull Chicago

Water Environment Federation. Industrial Wastewater. Alexandria, VA: Water Environment Federation, 1993.

Dyfyniad MLA

Water Environment Federation. Industrial Wastewater. Water Environment Federation, 1993.

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