Bratkowski, J. (2010). Album jubileuszowe Grunwald: Szkic historyczny. Viva Communications.
Citazione stile Chigago Style (17a edizione)Bratkowski, Jan. Album Jubileuszowe Grunwald: Szkic Historyczny. Wrocław: Viva Communications, 2010.
Citatione MLA (9a ed.)Bratkowski, Jan. Album Jubileuszowe Grunwald: Szkic Historyczny. Viva Communications, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.