Middleton, N., & O'Keefe, P. (2003). Rio plus ten: Politics, poverty and the environment. Pluto Press.
Cita Chicago (17th ed.)Middleton, Neil, i Philip O'Keefe. Rio Plus Ten: Politics, Poverty and the Environment. London ; Sterling, Va.: Pluto Press, 2003.
Cita MLA (9th ed.)Middleton, Neil, i Philip O'Keefe. Rio Plus Ten: Politics, Poverty and the Environment. Pluto Press, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.