ebrary, Inc, Field, J. G., Hempel, G., & Summerhayes, C. P. (2002). Oceans 2020: Science, trends, and the challenge of sustainability. Island Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, J. G. Field, Gotthilf Hempel, और C. P. Summerhayes. Oceans 2020: Science, Trends, and the Challenge of Sustainability. Washington, DC: Island Press, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, et al. Oceans 2020: Science, Trends, and the Challenge of Sustainability. Island Press, 2002.
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