Dyfyniad APA

India. Central Pollution Control Board. (1990). Minimal national standards, selected inorganic chemical industry. Central Pollution Control Board.

Dyfyniad Arddull Chicago

India. Central Pollution Control Board. Minimal National Standards, Selected Inorganic Chemical Industry. Delhi: Central Pollution Control Board, 1990.

Dyfyniad MLA

India. Central Pollution Control Board. Minimal National Standards, Selected Inorganic Chemical Industry. Central Pollution Control Board, 1990.

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