ASSOCIATION OF INDIAN UNIVERSITIES. (2001). ENVIRONMENTAL EDUCATION IN INDIA 1999-2000. ASSOCIATION OF INDIAN UNIVERSITIES.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रASSOCIATION OF INDIAN UNIVERSITIES. ENVIRONMENTAL EDUCATION IN INDIA 1999-2000. NEW DELHI: ASSOCIATION OF INDIAN UNIVERSITIES, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रASSOCIATION OF INDIAN UNIVERSITIES. ENVIRONMENTAL EDUCATION IN INDIA 1999-2000. ASSOCIATION OF INDIAN UNIVERSITIES, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.