Search for: [Subject and Keywords = stratigraphy] OR [Subject and Keywords = Gródek, Równe\-region \(Ukraine\)] OR [Subject and Keywords = stratygrafia] OR [Subject and Keywords = Gródek, Równe obwód\-region \(Ukraina\)] OR [Title = Horodok \(Gródek\), pow. Równe \: mapa okolic] OR [Creator = Sawicki, Ludwik \(1893–1972\)]