@misc{Piotr_Kubiak_90._2009,
 author={Piotr Kubiak},
 address={Poznań},
 year={2009},
 contents={Strona 285-289},
 publisher={Poznań : IZ,},
 language={pol},
 title={90. rocznica Powstania Wielkopolskiego 1918-1919},
 type={text},
}