Go into the Electrical section, where you posted this, and open the first post. It is a sticky with all the available diagrams listed, including your car. Post a reply with your email and request a copy from Jim. These diagrams are the best! You should consider making a contribution to the Alfabb.
1959 Giulietta Spider (gone, but not forgotten)
1959 Giulietta Spider(race car)
1981 Spider Veloce
1978 Spider Veloce(gone)
1986 Spider Veloce(parts car)
1960 Giulietta Spider