@misc{Roman_Backer_Oceny_1997,
 author={Roman Backer},
 address={Poznań},
 year={1997},
 contents={Strona 257-258},
 publisher={Poznań : IZ,},
 language={pol},
 title={Oceny i omówienia - Das politische System der Bundesrepublik Deutschland},
 type={text},
}