O'Riordan, T. (1995). Environmental science for environmental management. Harlow, Essex : Longman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रO'Riordan, Timothy. Environmental Science for Environmental Management. Harlow, Essex : Longman, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रO'Riordan, Timothy. Environmental Science for Environmental Management. Harlow, Essex : Longman, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.