@article{484815,
      recid = {484815},
      author = {Letwin, Shirley Robin.},
      title = {The pursuit of certainty David Hume, Jeremy Bentham, John  Stuart Mill, Beatrice Webb / [electronic resource] :},
      publisher = {Liberty Fund,},
      address = {Indianapolis :},
      pages = {xx, 434 p. :},
      year = {1998},
      url = {http://library.usi.edu/record/484815},
}