Cosca

Acosca is the crown of spiny, closely folded leaves on plants such as the artichoke or the thistle, which symbolizes the tightness of relationships between mafiosi.^[1]

• Blok, Anton (1974/1988). The Mafia of a Sicilian village 1860-1960. A study of violent peasant entrepreneurs, Long Grove (IL): Waveland Press. ISBN 0-88133-325-5.
• Dickie, John (2004). Cosa Nostra. A history of the Sicilian Mafia, London: Coronet. ISBN 978-0-340-82435-1.
• Servadio, Gaia (1976). Mafioso. A history of the Mafia from its origins to the present day, London: Secker & Warburg. ISBN 0-8128-2101-7.