@misc{M._Biskup_Teutonic_1966,
 author={M. Biskup},
 address={Poznań},
 year={1966},
 contents={Strona 6-7},
 publisher={Poznań : IZ,},
 language={pol},
 title={Teutonic Order and its State Bordering the Baltic in Poland’s History},
 type={text},
}