Walters, M. J. (2004). Seven modern plagues and how we are causing them (Paperback edition.). Island Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalters, Mark Jerome. Seven Modern Plagues and How We Are Causing Them. Paperback edition. Washington, District of Columbia: Island Press, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalters, Mark Jerome. Seven Modern Plagues and How We Are Causing Them. Paperback edition. Island Press, 2004.
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