Vol. 21 No. 4 (1971)

Articles

• Sedimentary structures of the Upper Silurian siltstones in the Polish Lowland

  Krzysztof Jaworowski

  519-572

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• Stratigraphy and palaeogeography of the Ordovician in the Holy Cross Mts

  Wiesław Bednarczyk

  573-616

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• Charakterystyka petrograficzna ordowiku z wiercenia Łankiejmy 2 (NE Polska)

  Maria Turnau-Morawska

  617-628

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• The Lower Devonian in the western part of the Klonów Belt (Holy Cross Mts) Part I - Upper Emsian

  Henryk Łobanowski

  629-688

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