Dyfyniad APA

(1997). Water pollution control: A guide to the use of water quality management principles. London: E & FN Spon.

Dyfyniad Arddull Chicago

Water Pollution Control: A Guide to the Use of Water Quality Management Principles. London: E & FN Spon, 1997.

Dyfyniad MLA

Water Pollution Control: A Guide to the Use of Water Quality Management Principles. London: E & FN Spon, 1997.

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