@misc{Nauwelaerts_Louis_Gerard_(1904-_)_Nafta,
 author={Nauwelaerts, Louis Gerard (1904- )},
 address={Lwów ; Warszawa},
 howpublished={online},
 publisher={Książnica-Atlas},
 language={pol ; eng},
 type={Książka},
 title={Nafta : potęga ziemi},
}