De Villiers, M. (1999). Water wars: Is the world's water running out? (1st pub.). Weidenfeld & Nicolson.
Cita Chicago Style (17a ed.)De Villiers, Marq. Water Wars: Is the World's Water Running Out? 1st pub. London: Weidenfeld & Nicolson, 1999.
Cita MLA (9a ed.)De Villiers, Marq. Water Wars: Is the World's Water Running Out? 1st pub. Weidenfeld & Nicolson, 1999.
Precaución: Estas citas no son 100% exactas.