Search for: [Subject and Keywords = regional geology \-\- Poland] OR [Subject and Keywords = Bielany \(Warsaw, Poland\)] OR [Subject and Keywords = Żerań, Białołęka \(Warsaw, Poland\)] OR [Subject and Keywords = Vistula Valley \(Poland\)] OR [Subject and Keywords = Warsaw, mazowieckie voivodeship\-region \(Poland\)] OR [Subject and Keywords = geologia regionu \-\- Polska] OR [Subject and Keywords = Bielany \(Warszawa, Polska\)] OR [Subject and Keywords = Żerań, Białołęka \(Warszawa, Polska\)] OR [Subject and Keywords = Wisły dolina \(Polska\)] OR [Subject and Keywords = Warszawa, woj. mazowieckie \(Polska\)] OR [Title = Notatki \: wiercenia w dolinie Wisły na linii Bielany \- Żerań] OR [Creator = Sawicki, Ludwik \(1893–1972\)]