Original Porsche 356 (Original Series): Meredith, Laurence: 9781870979580: Amazon.com: Books
Porsche Model by Model: Cole, Lance: 9781785007354: Amazon.com: Books
The Definitive Guide to Porsche 991 series 911: Everything you need to know about the Porsche 911 - 991 series (all models - gen1 & gen2), Neal, Grant, eBook - Amazon.com