@misc{_Gerardi,
 howpublished={online},
 publisher={Sumpt. et typis aeneis Iudoci Hondij},
 language={lat},
 type={mapy},
 title={Gerardi Mercatoris Atlas sive Cosmographicae meditationes de fabrica mvndi et Fabricati figvra},
 keywords={atlas świata, atlas geograficzny},
}