Search for: [Subject and Keywords = geological research] OR [Subject and Keywords = boreholes] OR [Subject and Keywords = Warsaw, mazowieckie voivodeship \(Poland\)] OR [Subject and Keywords = geologiczne badania] OR [Subject and Keywords = otwory wiertnicze] OR [Subject and Keywords = Warszawa, woj. mazowieckie \(Polska\)] OR [Title = Wyciągi z literatury dotyczące otworów wiertniczych na terenie Warszawy] OR [Creator = Sawicki, Ludwik \(1893–1972\)]