Columbia subject headings:
Polish language--Early modern, 1500-1700--Orthography and spelling.
Polish literature--History.
Spira, Francesco, -1548--Fiction.
Harvard subject headings:
Polish language--History.
Polish literature--History and criticism.
Princeton subject headings:
Polish language--Orthography and spelling.
Reformation--Poland.
Spiera, Franciczek, 1502-1548.