Dyfyniad APA

Comprehensive industry document series. Central Board for the Prevention & Control of Water Pollution.

Dyfyniad Arddull Chicago

Comprehensive Industry Document Series. New Delhi: Central Board for the Prevention & Control of Water Pollution.

Dyfyniad MLA

Comprehensive Industry Document Series. Central Board for the Prevention & Control of Water Pollution.

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