Columbia subject headings:
Harvard subject headings:
Cave del Predil (Italy)--History--20th century.
Miners--Labor unions--Italy--Cave del Predil--History.
Nogara, Bernardino, 1870-1958.
Raibl (Mining Company)--History.
Strikes and lockouts--Miners--Italy--Cave del Predil--History.
Princeton subject headings:
Cave del Predil (Italy)--History--20th century.
Miners--Labor unions--Italy--Cave del Predil--History.
Nogara, Bernardino, 1870-1958.
Raibl (Mining Company)--History.
Strikes and lockouts--Miners--Italy--Cave del Predil--History.