History of the Porsche Targa - Porsche Newsroom USA
Porsche 911 (964): Carrera 2, Carrera 4 and Turbocharged Models 1989 to 1994 (The Essential Buyer's Guide): Streather, Adrian: 9781845843380: Amazon.com: Books
Amazon.com: KK Scale Scale Model Compatible with Porsche 911 Speedster 1989 Black 1:18 KKDC180452 : Toys & Games
Praxisratgeber Klassikerkauf Porsche 911: Alle Modelle bis 1989 (German Edition), Morgan, Peter, eBook - Amazon.com
Porsche 911 Carrera - The Last of the Evolution (Classic Reprint): Corlett, Tony: 9781787110977: Books: Amazon.com
How to Rebuild and Modify Porsche 911 Engines 1965-1989: Dempsey, Wayne R.: 0752748310872: Books - Amazon