Cita APA (7a ed.)
Letwin, S. R. (1998). The pursuit of certainty: David Hume, Jeremy Bentham, John Stuart Mill, Beatrice Webb. Liberty Fund.
Cita Chicago Style (17a ed.)
Letwin, Shirley Robin. The Pursuit of Certainty: David Hume, Jeremy Bentham, John Stuart Mill, Beatrice Webb. Indianapolis: Liberty Fund, 1998.
Cita MLA (9a ed.)
Letwin, Shirley Robin. The Pursuit of Certainty: David Hume, Jeremy Bentham, John Stuart Mill, Beatrice Webb. Liberty Fund, 1998.
Precaución: Estas citas no son 100% exactas.