MERCEDES-BENZ, The 1960s, Volume 2: W100, W108, W109, W113: S. Koehling, Bernd: 9781480237223: Amazon.com: Books
Mercedes-Benz, The 1960s, W111 and W112 Coupes/Cabriolets with buyer's guide and chassis number, data card explanation: From the 220SE Coupe to the 280SE 3.5 Cabriolet, updated in March 2018, Koehling, Bernd S.,
MERCEDES-BENZ The W116: From the 280S to the 450SEL 6.9 and Tuners: S. Koehling, Bernd: 9798737807290: Amazon.com: Books