@misc{Jadwiga_Kiwerska_The_2013,
 author={Jadwiga Kiwerska},
 address={Poznań},
 year={2013},
 contents={Strona 31-56},
 publisher={Poznań : IZ,},
 language={pol},
 title={The United States in the World of Diversified Powers},
 type={text},
}