Columbia subject headings:
Harvard subject headings:
Elvas (Portugal)--History--20th century.
Smuggling--Portugal--Elvas--History--20th century.
World War, 1914-1918--Portugal--Elvas.
Princeton subject headings:
Elvas (Portugal)--History--20th century.
Smuggling--Portugal--Elvas--History--20th century.
World War, 1914-1918--Portugal--Elvas.