@misc{Marian_Friedberg_Olga_Łaszczyńska_Korespondencje_1951,
 author={Marian Friedberg, Olga Łaszczyńska},
 address={Poznań},
 year={1951},
 contents={Strona 680-691},
 publisher={Poznań : IZ,},
 language={pol},
 title={Korespondencje},
 type={text},
}