Southern, R. W. (1968). Essays in medieval history: Selected from the Transactions of the Royal Historical Society on the occasion of its centenary. Macmillan.
Chicago-viite (17. p.)Southern, Richard William. Essays in Medieval History: Selected from the Transactions of the Royal Historical Society on the Occasion of Its Centenary. London: Macmillan, 1968.
MLA-viite (9. p.)Southern, Richard William. Essays in Medieval History: Selected from the Transactions of the Royal Historical Society on the Occasion of Its Centenary. Macmillan, 1968.
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