Husain Majid. (2023). Paryavaran Evam Paristhithiki for Civil Services Examination (6th ed.). G.K. Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHusain Majid. Paryavaran Evam Paristhithiki for Civil Services Examination. 6th ed. Faridabad: G.K. Publications, 2023.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHusain Majid. Paryavaran Evam Paristhithiki for Civil Services Examination. 6th ed. G.K. Publications, 2023.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.