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Mafia - Wikipedia
American Mafia - Wikipedia
Origins of the Mafia - Meaning, Location & Sicily | HISTORY
Sicilian Mafia - Wikipedia
Mafia | History, Organization, Boss, Family, & Facts | Britannica
How the Mafia Works | HowStuffWorks
Mafia in the United States - Today, Italian-American & History | HISTORY
Sicilian Mafia | History, Families, Leaders, & Facts | Britannica
Mafia summary | Britannica
Italian mafia: How crime families went global - BBC