@misc{Helwing_Georg_Andreas_Supplementum,
 author={Helwing, Georg Andreas},
 howpublished={online},
 publisher={Typis Thomae Johannis Schreiberi},
 language={lat},
 language={pol},
 language={de},
 title={Supplementum florae Prussicae, seu enumeratio plantarum indigenarum post editam Floram quasimodogenitam Additis Synonymiis, Appellationibus Latino-Germanico-Polonicis, nec non observationibus quibusdam curiosis, ultra numerum quadringentesimum [...]},
 type={stary druk},
 keywords={stary druk - 18 w., Helwing, Georg Andreas (1666 - 1748), Schreiber, Thomas Johann (1699 - 1778), Klein, Jakob Theodor (1685 - 1759), nauka – 18 w., botanika},
}