Popławski, Jan Ludwik: "Jubileusz pruski". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:240, as quoted in Porter 1992, p. 652. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.
Popławski, Jan Ludwik: "Nasz demokratyzm". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:110, as quoted in Porter 1992, p. 646. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.
Popławski, Jan Ludwik: "Jubileusz pruski". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:240, as quoted in Porter 1992, p. 652. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.
Popławski, Jan Ludwik: "Nasz demokratyzm". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:110, as quoted in Porter 1992, p. 646. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.
Popławski, Jan Ludwik: "Jubileusz pruski". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:240, as quoted in Porter 1992, p. 652. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.
Popławski, Jan Ludwik: "Nasz demokratyzm". In Pisma polityczne, Zygmunt Wasilewski (ed) (Kraków and Warsaw: Gebethner i Wolff, 1910), 1:110, as quoted in Porter 1992, p. 646. Porter, Brian A. (1992). "Who is a Pole and Where is Poland? Territory and Nation in the Rhetoric of Polish National Democracy before 1905". Slavic Review. 51 (4): 639–653. doi:10.2307/2500129. JSTOR2500129. S2CID159482423.