@misc{Mizwa_Stephen_P._(1892-1971)_Nicholas,
 author={Mizwa, Stephen P. (1892-1971)},
 howpublished={online},
 publisher={New York : The Kosciuszko Foundation},
 language={eng},
 type={książka},
 title={Nicholas Copernicus, 1543-1943},
 keywords={Kopernik, Mikołaj (1473-1543)},
}