Dyfyniad APA

Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.

Dyfyniad Arddull Chicago

Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.

Dyfyniad MLA

Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.

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