Transformations in the country and in agriculture in the thirty years of the Polish People's Republic (Structural transformations of the country and agriculture in People's Poland)
RU
Preobrazovanija derevni i sel'skogo khozjajjstva v tridcatiletii PNR (Strukturnye preobrazovanija derevni i sel'skogo khozjajjstva v narodnojj Pol'she)