Columbia subject headings:
Constante, Mariano, 1920-
Mauthausen (Concentration camp)
Spain--History--Civil War, 1936-1939--Personal narratives.
World War, 1939-1945--Prisoners and prisons, German.
Harvard subject headings:
Constante, Mariano, 1920-
Mauthausen (Concentration camp)
Soldiers--Spain--Biography
Spain--History--Civil War, 1936-1939--Personal narratives.
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings:
Constante, Mariano, 1920-
Mauthausen (Concentration camp)
Personal narratives.
Spain--History--Civil War, 1936-1939--Personal narratives.
World War, 1939-1945--Prisoners and prisons, German.