1. Adler, E. and M. Barnett (1998) Security Communities (Cambridge: Cambridge University Press).
2. Allan, G. (1989) Friendship (New York: Harvester Wheatsheaf).
3. Allan, G. (1998) ‘Friendship, Sociology and Social Structure’, Journal of Social and Personal Relationships, 15:5, 685–702.
4. Arendt, H. (1970) On Violence (London: Penguin).
5. Aristotle (1999) Nicomachean Ethics (NE), transl. by T. Irwin, 2nd edn (Indianapolis, IN: Hackett).