@misc{Wacław_Radkiewicz_Labour_1957,
 author={Wacław Radkiewicz},
 address={Poznań},
 year={1957},
 contents={Strona 11-12},
 publisher={Poznań : IZ,},
 language={pol},
 title={Labour Efficiency and Agricultural Structure in the German Federal Republic},
 type={text},
}