Ośrodek "Karta" (Warszawa), Knyt, A., & Herchenreder, B. (2020). The Battle for Warsaw 1920: Independence regained - freedom endangered (Issue I.). Ośrodek Karta.
Citazione stile Chigago Style (17a edizione)Ośrodek "Karta" (Warszawa), Agnieszka Knyt, e Barbara Herchenreder. The Battle for Warsaw 1920: Independence Regained - Freedom Endangered. Issue I. Warsaw: Ośrodek Karta, 2020.
Citatione MLA (9a ed.)Ośrodek "Karta" (Warszawa), et al. The Battle for Warsaw 1920: Independence Regained - Freedom Endangered. Issue I. Ośrodek Karta, 2020.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.