Vista del motor de dos levas Alfa Romeo bajo el capó Fotografía de stock - Alamy
Alfa Romeo All-Alloy Twin CAM Companion, 1954-1994: Four-Cylinder History, Care, and Restoration: Giulietta, Giulia, and Alfetta Families by Pat Braden (2004-05-01) : Amazon.es: Libros
Engine History: Alfa Romeo Twin Cam Four – A Pioneer, And As Beautiful As The Cars It Powered | Curbside Classic