Search for: [Subject and Keywords = geological research] OR [Subject and Keywords = Bielany \(Warsaw, Poland\)] OR [Subject and Keywords = Warsaw, mazowieckie voivodeship \(Poland\)] OR [Subject and Keywords = geologiczne badania] OR [Subject and Keywords = Bielany \(Warszawa, Polska\)] OR [Subject and Keywords = Warszawa, woj. mazowieckie \(Polska\)] OR [Title = Notatki i rysunki do przedstawienia stosunków stratygraficznych na wysokim lewym brzegu doliny Wisły, odcinek Bielany\-Młociny] OR [Creator = Sawicki, Ludwik \(1893–1972\)]