@book{UBHD-1466849, title={Piątkiewicz Bronisław - Pniewski Władysław}, publisher={IH}, address={Warszawa}, year={1981}, pages={XII, 832 S.}, language={pol}, isbn={83-04-00148-9 and 978-83-04-00148-0}, library={UB [Signatur: 69 C 29::26.1981]}, }