Columbia subject headings:
Harvard subject headings:
Dias, Santo, 1942-1979.
Labor disputes--Brazil--São Paulo (State)
Labor unions--Brazil--São Paulo (State)
Labor--Brazil--São Paulo (State)--Biography.
Working class--Brazil--São Paulo (State)--Biography.
Princeton subject headings:
Dias, Santo, 1942-1979.
Labor--Brazil--São Paulo (State).