@misc{Gilbert_William_(1540-1603)_Tractatus,
 author={Gilbert, William (1540-1603)},
 howpublished={online},
 publisher={sumptibus Joh. Hallervordij},
 publisher={typis Götzianis},
 language={lat},
 title={Tractatus Sive Physiologia Nova De Magnete, Magneticisqve Corporibus Et Magno Magnete tellure Sex libris comprehensus},
 type={stary druk},
 keywords={geomagnetyzm, magnetyzm ziemski, 17 w., 16 w.},
}