Walters, M. J. (2004). Seven modern plagues and how we are causing them (Paperback edition.). Island Press.
Citazione stile Chigago Style (17a edizione)Walters, Mark Jerome. Seven Modern Plagues and How We Are Causing Them. Paperback edition. Washington, District of Columbia: Island Press, 2004.
Citatione MLA (9a ed.)Walters, Mark Jerome. Seven Modern Plagues and How We Are Causing Them. Paperback edition. Island Press, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.