1. G. W. F. Hegel, Hegel’s Science of Logic, tr. A. V. Miller (London and New York: George, Allen and Unwin, 1976), pp. 165–6.
2. D. McLellan, Marx Before Marxism (Harmondsworth: Penguin Books, 1972), p. 83.
3. K. Marx, Difference Between the Democritean and Epicurean Philosophy of Nature in K. Marx and F. Engels, Collected Works, 1 (London: Lawrence and Wishart, 1975), pp. 84–7.
4. G. W. F. Hegel, Lectures on the History of Philosophy, Vol. 1 tr. E. S. Haldane and F. H Simson (London & New York: Kegan, Paul, Trench & Tryber, 1892), pp. 223–4.
5. Z. Rosten, Bruno Bauer andKarl Marx (The Hague: Martinus Nijhoff, 1977).