1. Thomas Hodgskin , Labour Defended Against the Claims of Capital [1825] (London: The Labour Publishing Co., 1922), pp. 38, 36–7
2. Werner Sombart , Der moderne Kapitalismus (Leipzig: Duncker und Humblot, 1902), Bd. I pp. xxxi–xxxii
3. John Bray , Labour’s Wrongs and Labour’s Remedy (Leeds: David Green, 1839), p. 60
4. Thorstein Veblen , The Theory of the Leisure Class (London: Penguin Books, 1994)
5. Peter Ghosh , Max Weber and The Protestant Ethic: Twin Histories (Oxford: Oxford University Press, 2014)