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Lake DA, Powell R. ‘International Relations: A Strategic-Choice Approach’. In: Strategic choice and international relations. Princeton, N.J.: : Princeton University Press 1999. https://contentstore.cla.co.uk/secure/link?id=45d76bd5-4014-e911-80cd-005056af4099
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Kellstedt PM, Whitten GD. Chapter 2, sections 2.6 and 2.7. In: The fundamentals of political science research. Cambridge: : Cambridge University Press 2013. https://contentstore.cla.co.uk/secure/link?id=c3c1fba4-4714-e911-80cd-005056af4099
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Goodhart D. ‘Anywheres and Somewheres’. In: The road to somewhere: the new tribes shaping British politics. London: : Penguin Books 2017. https://contentstore.cla.co.uk/secure/link?id=cb42de27-4214-e911-80cd-005056af4099
