Dyfyniad APA

DINGES, R. (1982). Natural Systems For Water Pollution Control Ray Dinges. Van Nostrand Reinhold Co.

Dyfyniad Arddull Chicago

DINGES, Ray. Natural Systems For Water Pollution Control Ray Dinges. Van Nostrand Reinhold Co, 1982.

Dyfyniad MLA

DINGES, Ray. Natural Systems For Water Pollution Control Ray Dinges. Van Nostrand Reinhold Co, 1982.

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