APA (7 वां संस्करण) प्रशस्ति पत्र

Tiwari.H.N. (2022). Environmental Law (7th.). Allahabad Law Agency.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Tiwari.H.N. Environmental Law. 7th. Faridabad: Allahabad Law Agency, 2022.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Tiwari.H.N. Environmental Law. 7th. Allahabad Law Agency, 2022.