Bhaskar, R. (1978) A Realist Theory of Science. Brighton: Harvester .
2.
Collier, A. (1994) Critical Realism. An Introduction to the Philosophy of Roy Bhaskar. London : Verso.
3.
Douady, S. and Y. Couder (1996) 'Phyllotaxis as a dynamical self organizing process', Parts I, II, and III, Journal of Theoretical Biology178: 255, 275, 295.
4.
Goodwin, B.C. (1994) How the Leopard Changed Its Spots. The Evolution of Complexity. London: Weidenfeld and Nicolson.
5.
Harré, R. (1970) Principles of Scientific Thinking. Chicago: University of Chicago Press.
6.
Harré, R. (1986) Varieties of Realism. Oxford: Blackwell.
7.
Hull, D.L. (1984) 'Historical entities and historical narratives', in C. Hookway (ed.) Minds, Machines and Evolution. Cambridge: Cambridge University Press.
8.
Ingold, T. (1995) 'People Like Us: The Concept of the Anatomically Modern Human', Cultural Dynamics7(2): 187-214.
9.
Webster, G. and B. Goodwin (1996) Form and Transformation. Generative and Relational Principles in Biology. Cambridge: Cambridge University Press.