found:Web. 3(Mafia, also Maffia)
found:Random House(Mafia or Maffia)
found:World Book encyclopedia, 2010:v. 13, p. 41 (Mafia; a secret criminal society in Sicily; also used as a general term for any underworld criminal organization)
found:Encyclopedia Americana, 2005:v. 18, p. 75 (Mafia; a name applied to criminal associations in Sicily and organized crime gangs in the United States; the Sicilian Mafia "has always been an alliance of many small, semiautonomous groups")
found:FBI website, viewed on July 19, 2016:what we investigate, organized crime (Mafia; "Italian criminal societies known as the Mafia"; groups include the Sicilian Mafia, Camorra, 'Ndrangheta, and Sacra Corona Unita)
