@misc{Königliches_Gymnasium_(Gniezno)_21.,
 author={Königliches Gymnasium (Gniezno)},
 howpublished={online},
 publisher={[s. n.]},
 publisher={J. B. Lange},
 title={21. 1883-1884 (1884)},
 keywords={Königliches Gymnasium (Gniezno) -- sprawozdania. ; Szkoły -- Polska -- Gniezno -- 19 w.},
}