ebrary, Inc. (1995). Effects of past global change on life. National Academy Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc. Effects of Past Global Change on Life. Washington, D.C.: National Academy Press, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc. Effects of Past Global Change on Life. National Academy Press, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.