Haugen, P. (2008). Was Napoleon poisoned? and other unsolved mysteries of royal history. Wiley.
Chicago-viite (17. p.)Haugen, Peter. Was Napoleon Poisoned? and Other Unsolved Mysteries of Royal History. Hoboken, N.J: Wiley, 2008.
MLA-viite (9. p.)Haugen, Peter. Was Napoleon Poisoned? and Other Unsolved Mysteries of Royal History. Wiley, 2008.
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