IZDEBSKI, Hubert. Zara S. Steiner, The Foreign Office and Foreign Policy 1898 - 1914 . Czasopismo Prawno-Historyczne, [S. l.], v. 24, n. 1, p. 271–273, 1972. DOI: 10.14746/cph.1972.24.1.21. Disponível em: https://pressto.amu.edu.pl/index.php/cph/article/view/50795. Acesso em: 12 luty. 2026.