Columbia subject headings:
Harvard subject headings:
Pharmacists--Austria--Diaries.
Prisoners of war--Austria--Diaries.
Prisoners of war--Serbia--Diaries.
Schwenk, Ludwig, 1888-1939--Diaries.
World War, 1914-1918--Personal narratives
World War, 1914-1918--Prisoners and prisons, Serbian.
Princeton subject headings:
Diaries.
Personal narratives.
Pharmacists--Austria--Diaries.
Prisoners of war--Austria--Diaries.
Prisoners of war--Serbia--Diaries.
Schwenk, Ludwig, 1888-1939--Diaries.
World War, 1914-1918--Personal narratives.
World War, 1914-1918--Prisoners and prisons, Serbian.