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Europe landforms East European Lowlands.svg pl Ni Wschodnioeuropejski en East European LowlandsWedug According to Bolesaw Augustowski Wielkie regiony naturalne Europy Antoni Wrzosek red Geografia Powszechna Tom III Europa bez ZSRR Pastwowe Wydawnictwo Naukowe Warszawa Uwaga linie wybrzea granice pastw jednostek fizycznogeograficznych