1. D. Ricardo (1951) Notes on Malthus’s Principles of Political Economy, Volume II, The Works and Correspondence of David Ricardo, (ed.) Piero Sraffa (Cambridge: Cambridge University Press).
2. D. Ricardo, On the Principles of Political Economy and Taxation, Volume I, (Sraffa, ed.)
3. L. C. Robbins (1971) Autobiography of an Economist (London: Macmillan; New York: St Martin’s Press).
4. L. C. Robbins (1984) The Nature and Significance of Economic Science, third edition (London: Macmillan; New York: New York University Press).
5. L. C. Robbins (1952) The Theory of Economic Policy in English Classical Political Economy (London, Macmillan).