Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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