Columbia subject headings:
Silver miners--Greece--Laurio--Social conditions.
Silver mines and mining--Greece--Laurio--History.
Slavery--Greece--Laurio--History.
Slaves--Greece--Laurio--Social conditions.
Harvard subject headings:
Greece--Social conditions.
Laurio (Greece)--History.
Slavery--Greece
Princeton subject headings:
Laurio (Greece)
Mines and mineral resources--Greece--Lavrion.
Slavery--Greece.