//-->
Geschichte der Steuern des britischen Reichs : ein finanzgeschichtlicher Versuch
Vocke, Wilhelm, (1866)
The early English customs system : a documentary study of the institutional and econ. history of the customs from the 13. to the 16. cent.
Gras, Norman Scott Brien, (1918)
Minutes of evidence taken before the Committee on National Debt and Taxation
(1927)
The free-trade movement and its results
Armitage-Smith, George, (1903)
The Free-trade Movement and its results
Economic destiny
Hawtrey, Ralph G., (1944)