Professional Book Publishers. (2019). Air (Prevention and Control of Pollution) Act 1981. Professional Book Publishers.
Lua i Stíl Chicago (17ú heag.)Professional Book Publishers. Air (Prevention and Control of Pollution) Act 1981. Delhi: Professional Book Publishers, 2019.
Lua MLA (9ú heag.)Professional Book Publishers. Air (Prevention and Control of Pollution) Act 1981. Professional Book Publishers, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.