Columbia subject headings:
Harvard subject headings:
Communism--Italy--Siena--History.
Michele, Squarci, 1867-1921.
Peasants--Italy--Siena--Political activity.
Peasants--Political activity--Italy--Siena.
Siena (Italy)--Politics and government.
Socialism--Italy--Siena--History.
Socialism--Italy--Siena.
Socialists--Italy--Siena--Biography.
Princeton subject headings:
Communism--Italy--Siena--History.
Michele, Squarci, 1867-1921.
Peasants--Italy--Siena--Political activity.
Siena (Italy)--Politics and government.
Socialism--Italy--Siena--History.
Socialists--Italy--Siena--Biography.