@misc{Sobieski_Marek_A.B.C.,
 author={Sobieski, Marek},
 copyright={Sobieski, Marek},
 address={Londyn},
 address={London},
 howpublished={online},
 publisher={Williams, Lea & Co.},
 language={pol},
 type={broszura},
 title={A.B.C. Polaka},
}