Columbia subject headings:
Mineral industries--Italy--Sardinia--History.
Nazi concentration camps--Italy--Sardinia--History--20th century.
Prisoners of war--Austria.
Prisoners of war--Italy--Sardinia.
World War, 1914-1918--Prisoners and prisons, Austrian.
World War, 1914-1918--Prisoners and prisons, Italian.
Harvard subject headings:
Concentration camps--Italy--Sardinia--History--20th century.
Mineral industries--Italy--Sardinia--History.
Prisoners of war--Austria.
Prisoners of war--Italy--Sardinia.
World War, 1914-1918--Prisoners and prisons, Austrian
World War, 1914-1918--Prisoners and prisons, Italian.
Princeton subject headings:
Internment camps--Italy--Asinara Island--History--20th century.
Mineral industries--Italy--Sardinia--History--20th century.
Prisoners of war--Austria--History--20th century.
Prisoners of war--Italy--Sardinia--History--20th century.
World War, 1914-1918--Conscript labor--Italy--Sardinia.
World War, 1914-1918--Prisoners and prisons, Italian.