Professional Book Publishers. (2019). Air (Prevention and Control of Pollution) Act 1981. Professional Book Publishers.
Citazione stile Chigago Style (17a edizione)Professional Book Publishers. Air (Prevention and Control of Pollution) Act 1981. Delhi: Professional Book Publishers, 2019.
Citatione MLA (9a ed.)Professional Book Publishers. Air (Prevention and Control of Pollution) Act 1981. Professional Book Publishers, 2019.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.