Larsen, Knud. “Joseph Rothschild: Pilsudski’s Coup d’Etat. East Central European Studies of Columbia University. New York and London, Columbia University Press, 1966. Xii + 435 S. 72 Sh.”. Historisk Tidsskrift 120 (januar 1, 1969). Set september 27, 2020. https://tidsskrift.dk/historisktidsskrift/article/view/50917.