Karl Marx, Capital I, Chapter 1, Note 4., (referring to John Locke, "Some Considerations on the consequences of the lowering of interest, 1691," in Works Edit. London, 1777. Vol. II, p. 28.) http://www.efm.bris.ac.uk/het/marx/cap1/chap01Arxivat 2015-09-23 a Wayback Machine. accessed 18 May 2009.
Karl Marx, Capital I, Chapter 1, Note 4., (referring to John Locke, "Some Considerations on the consequences of the lowering of interest, 1691," in Works Edit. London, 1777. Vol. II, p. 28.) http://www.efm.bris.ac.uk/het/marx/cap1/chap01Arxivat 2015-09-23 a Wayback Machine. accessed 18 May 2009.