Columbia subject headings:
Harvard subject headings:
Asti (Italy)--History--Sources.
Labor unions--Italy--Asti--History.
Working class--Italy--Asti--History.
Princeton subject headings:
Fraternal organizations--Italy--Asti (Province)--History--1th century.
Labor movement--Italy--Asti (Province)--History--19th century.
Labor unions--Italy--Asti (Province)--History--19th century.
Working class--Italy--Asti (Province)--History--19th century.