Her Majesty's Stationery Office & Prothero, G. W. (1920). Poland general sketch of history 1569-1815. H.M. Stationery Office.
Citazione stile Chigago Style (17a edizione)Her Majesty's Stationery Office e G. W. Prothero. Poland General Sketch of History 1569-1815. London: H.M. Stationery Office, 1920.
Citatione MLA (9a ed.)Her Majesty's Stationery Office e G. W. Prothero. Poland General Sketch of History 1569-1815. H.M. Stationery Office, 1920.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.