Porsche 911: The Ultimate Sportscar as Cultural Icon: Poschardt, Ulf: 9783899556872: Amazon.com: Books
911 x 911: The Official Anniversary Book Celebrating 50 Years of the Porsche 911 (English, Spanish, French, German, Russian and Chinese Edition): Dieter Landenberger, The Porsche Museum: 9781935007234: Amazon.com: Books
Porsche 911 Edition 50 Years Porsche Design - Porsche USA