1. Abraham-Frois, G., and Berrebi, E. 1980. Rentes, rareté, surprofits. Economica 8, Paris.
2. Anderson, J. 1777. An inquiry into the nature of the Corn-Laws; with a view to the new Corn-Bill proposed for Scotland. Edinburgh.
3. Cannan, E. 1893–1917. A history of the theories of production and distribution in English political economy. 3rd ed. London: P.S. King & Son, 1917.
4. Gibson, W. 1984. Profit and rent in a classical theory of exhaustible and renewable resources. Zeitschrift für Nationalökonomie 44(2): 131–149.
5. Malthus, T.R. 1814. Observations on the effects of the corn laws and of a rise or fall in the price of corn on the agriculture and general wealth of the country. London: J. Johnson.