1. Hegel, G. 1931. The Phenomenology of Mind, tr. J. Baillie, 2nd ed., London: George Allen and Unwin Ltd.
2. Hegel, G. 1955. Lectures on the History of Philosophy, trs. E. Haldane and F. Simpson, Vol. 1, London: Routledge and Kegan Paul.
3. Hegel, G. 1969. Hegel's Science of Logic, tr. A. Miller, London: Allen and Unwin.
4. Karl Marx on the transition from feudalism to capitalism
5. Marx, K. 1976. Capital: A Critique of Political Economy, tr. B. Fowkes, Vol. 1, London: Penguin Books.