@misc{Engelhart_Valentin_(1516-post_1562)_Quadrans_1559,
 author={Engelhart, Valentin (1516-post 1562)},
 year={1559},
 rights={Domena publiczna (Public domain)},
 publisher={Schwenck, Lorenz (15..-1574). Drukarz},
 language={lat},
 title={Quadrans Planisphaerii, Nobilissimum Instrumentum, Cuius Usu Atque Tractatione variæ tam Astronomicæ quam Geographicæ expediuntur & explicantur observationes, [...]},
 type={stary druk},
 keywords={astronomia - dzieła przed 1800, geografia - dzieła przed 1800},
}