@misc{Armitage_Angus_(1902-1976)_Copernicus,
 author={Armitage, Angus (1902-1976)},
 address={London},
 howpublished={online},
 publisher={George Allen & Unwin LTD},
 language={eng},
 title={Copernicus : the founder of modern astronomy},
 type={książka},
}