Circuit of Mugello

[Buonfornello]

Has anyone come across any books, articles or web pages containing information about the Circuit of Mugello road races?I am not referring to the modern Mugello racetrack; rather the Targa Florio-type road races which were held on a public-road circuit of aprox. 70-80 kilometers per lap in the mountains north of Florence.I am not sure of the Championship that it was a part of or the years it was held, although the period that I'm most interested in learning about is when it was revived in about 1964 until its final abandonment after the Targa spectator tragedy in 1975, I think.I'm not sure whether Ferrari participated officially, but I believe that there were some exciting duels between the 908's and 33's there in the '68-70 period.The roads used are probably still in existence and it would interest me to see a map or at least a verbal description of route if anyone knows.