Columbia subject headings:
Authors, Polish--20th century--Diaries.
Szczepański, Jan Józef--Diaries.
Harvard subject headings:
Authors, Polish--20th century--Diaries.
Szczepański, Jan Józef--Diaries.
Princeton subject headings:
Authors, Polish--20th century--Diaries.
Diaries.
Szczepański, Jan Józef--Diaries.