@misc{Piltz_Erazm_(1851-1929)_La,
 author={Piltz, Erazm (1851-1929)},
 address={Lausanne},
 howpublished={online},
 publisher={wydawca nieznany},
 publisher={Imprimeries Réunies},
 language={fre},
 title={La politique russe en Pologne},
 type={książka},
}