@misc{Leroy-Beaulieu_Paweł_(1843-1916)_Praca_1875,
 author={Leroy-Beaulieu, Paweł (1843-1916)},
 address={Warszawa},
 howpublished={online},
 year={1875},
 publisher={J. Korzeniewski},
 title={Praca kobiet w XIX wieku},
}