Porsche 917: The Winning Formula by Morgan, Peter (Hardcover
Porsche 917: The Winning Formula by Morgan, Peter (Hardcover,Amazon.com: Porsche 917: The Winning Formula: 9781859606339,The Winning Formula: Porsche 917K & 919 Hybrid - Speedhunters,DSCF9217_4000x2677_crop_center,hq720.jpg?sqp=-