Dyfyniad APA

Professional Book Publishers. (2019). The Air (Prevention and Control of Pollution) Act, 1981 (14 of 1981). Professional Book Publishers.

Dyfyniad Arddull Chicago

Professional Book Publishers. The Air (Prevention and Control of Pollution) Act, 1981 (14 of 1981). New Delhi: Professional Book Publishers, 2019.

Dyfyniad MLA

Professional Book Publishers. The Air (Prevention and Control of Pollution) Act, 1981 (14 of 1981). Professional Book Publishers, 2019.

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