Porsche 924/928/944/968: The Complete Story (Crowood Autoclassics): Smale Sm, Glen: 9781785000393: Amazon.com: Books
Porsche 968 Turbo RS review, specs, stats, comparison, rivals, data, details, photos and information on SupercarWorld.com
Porsche 928, 924, 944 and 968: The Front-Engined Sports Cars: Cranswick, Marc: 9780786430406: Amazon.com: 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