Dukes, P. (1990). A history of Russia: Medieval, modern, contemporary (2nd ed.). Macmillan.
Chicago-viite (17. p.)Dukes, Paul. A History of Russia: Medieval, Modern, Contemporary. 2nd ed. London: Macmillan, 1990.
MLA-viite (9. p.)Dukes, Paul. A History of Russia: Medieval, Modern, Contemporary. 2nd ed. Macmillan, 1990.
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