Columbia subject headings:
Harvard subject headings:
Mafia--Italy--Sicily
Sicily (Italy)--Politics and government--1870-1945
Sicily (Italy)--Politics and government--1945-
Princeton subject headings:
Mafia--Italy--Portella della Ginestra--History--Sources.
Mafia--Italy--Portella della Ginestra.
Massacres--Italy--Portella della Ginestra--History--Sources.
Massacres--Italy--Portella della Ginestra.
Portella della Ginestra Massacre, Portella della Ginestra, Italy, 1947.
Sicily (Italy)--Politics and government--Sources.
Sicily (Italy)--Politics and government.