@misc{Bohdan_Kopeć_The_1960,
 author={Bohdan Kopeć},
 address={Poznań},
 year={1960},
 contents={Strona 2-3},
 publisher={Poznań : IZ,},
 language={pol},
 title={The Changes in the Economic Structure of the Agriculture in the Western Territories, in 1938, 1951, 1958},
 type={text},
}