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King Frederick II of Prussia (1970) [1752]. „Political Testament“(PDF). In Macartney, C. A. (red.). The Habsburg and Hohenzollern Dynasties in the Seventeenth and Eighteenth Centuries. Vertė Macartney, C. A. New York: HarperCollins. Suarchyvuotas originalas(PDF) 24 February 2021 – via German History in Documents and Images.
King Frederick II of Prussia (1970) [1752]. „Political Testament“(PDF). In Macartney, C. A. (red.). The Habsburg and Hohenzollern Dynasties in the Seventeenth and Eighteenth Centuries. Vertė Macartney, C. A. New York: HarperCollins. Suarchyvuotas originalas(PDF) 24 February 2021 – via German History in Documents and Images.