@misc{Librach_Jan_(1904-1973)_La,
 author={Librach, Jan (1904-1973)},
 copyright={Librach, Jan (1904-1973)},
 address={Paris},
 howpublished={online},
 publisher={(Imp. Chaix)},
 language={pol},
 type={broszura},
 title={La Pologne sans liberté},
}