Columbia subject headings:
Catholic Church--Italy--Basilicata--Societies, etc.--History.
Catholic Church--Political activity--Italy--Basilicata--History.
Church and social problems--Italy--Basilicata--History.
Fraternal organizations--Italy--Basilicata--History.
Socialism and Christianity--Catholic Church--Italy--Basilicata--History.
Socialism--Italy--Basilicata--History.
Harvard subject headings:
Catholic Church--Italy--Basilicata--Political activity--History.
Catholic Church--Political activity--Italy--Basilicata--History.
Mutualism--Italy--Basilicata--History.
Socialism and Christianity--Catholic Church--Italy--Basilicata--History.
Socialism and Christianity--Catholic Church.
Socialism and Christianity--Italy--Basilicata--History.
Socialism--Italy--Basilicata--History.
Socialism--Italy--Basilicata.
Princeton subject headings:
Catholic Church--Italy--Basilicata--Political activity--History.
Catholic Church--Italy--Basilicata--Societies, etc.--History.
Church and social problems--Italy--Basilicata--History.
Fraternal organizations--Italy--Basilicata--History.
Socialism and the Catholic Church--Italy--Basilicata--History.
Socialism--Italy--Basilicata--History.