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Vogler, John (2008) ‘Environmental Issues’ in The Globalization of World Politics: An Introduction to International Relations. Baylis, John. Smith, Steve. Owens, Patricia. (eds.) Oxford: Oxford University Press

Patterson, Matthew (2009) ‘Green Politics’ in Theories of International Relations. Burchill, Scott et all. Basingstoke: Palgrave Macmillian

Steans, Jill. Pettiford, Lloyd. Diez, Thomas. (2004) Introduction to International Relations: perspectives and themes . London: Pearson. PP. 203–228