1968-yilgi SCCA Gran-pri chempionati Amerika sport avtomobillari klubi tomidan tashkil etilgan poyga[1].
- ↑ 1968 SCCA Grand Prix Championship Review, www.myf5000.com (Wayback Machine saytida 2022-10-11 sanasida arxivlangan) Retrieved on 14 February 2014