@misc{Landau_Zbigniew_(1931–2018)_National_1976, author={Landau, Zbigniew (1931–2018)}, volume={33}, editor={Aleksandrowicz, Jan. Tr.}, editor={Institute of History of the Polish Academy of Sciences}, copyright={Rights Reserved - Free Access}, address={Wrocław}, journal={Acta Poloniae Historica}, howpublished={online}, year={1976}, publisher={Zakład Narodowy im. Ossolińskich}, language={eng}, type={Text}, title={National Income in Historical Research}, URL={http://www.rcin.org.pl/Content/13964/PDF/WA303_30537_1976-33_APH_05_o.pdf}, keywords={Poland 1918-1939, economy, industry, agriculture, national income, methodology}, }