World Resources Institute, United Nations Environment Programme, United Nations Development Programme, & World Bank. (1998). World resources, 1998-99: A guide to the global environment : environmental change and human health. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Resources Institute, United Nations Environment Programme, United Nations Development Programme, और World Bank. World Resources, 1998-99: A Guide to the Global Environment : Environmental Change and Human Health. New York ; Oxford: Oxford University Press, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Resources Institute, et al. World Resources, 1998-99: A Guide to the Global Environment : Environmental Change and Human Health. Oxford University Press, 1998.
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