Columbia subject headings:
Żeromski, Stefan, 1864-1925. Duma o hetmanie.
Żółkiewski, Stanisław, 1547?-1620--In literature.
Harvard subject headings:
Żeromski, Stefan, 1864-1925. Duma o hetmanie.
Żółkiewski, Stanisław, 1547?-1620, in fiction, drama, poetry, etc.
Princeton subject headings:
Żeromski, Stefan, 1864-1925. Duma o hetmanie.
Żółkiewski, Stanisław, 1547?-1620--In literature.