Original Porsche 924/944/968: The Guide to All Models 1975-95 Including Turbos and Limited Edition (Original Series): Peter Morgan, Simon Clay, Dieter Rebmann: 0635857000790: Amazon.com: Books
Porsche 911 Carrera: Handbuch für die komplette Fahrzeugtechnik ( Reparaturanleitungen) : Amazon.de: Bücher
Porsche 924, 944, 968: Die technische Dokumentation der Transaxle-Vierzylinder : Austen, Jörg: Amazon.de: Books
Original Porsche 924/944/968: The Guide to All Models 1975-95 Including Turbos and Limited Edition (Original Series): Peter Morgan, Simon Clay, Dieter Rebmann: 0635857000790: Amazon.com: Books