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The Complete Book of Porsche 911: Every Model Since 1964 (Complete Book Series): Leffingwell, Randy: 9780760365038: Amazon.com: Books
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Porsche 911: Perfection by Design: Leffingwell, Randy: 8601422972443: Amazon.com: Books
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Speed Read Porsche 911: The History, Technology and Design Behind Germany's Legendary Sports Car (Volume 5) (Speed Read, 5): Dempsey, Wayne R.: 9780760363225: Amazon.com: Books
Porsche 911; The Practically Free Supercar: The complete beginner's guide to the smartest route into Porsche ownership, McGowan, Robert, eBook - Amazon.com