Posthumus, p. 76. Cyril Posthumus, Slump and Recovery, in The story of Veteran & Vintage Cars, illustrazioni di John Wood, Londra, Hamlyn / Phoebus, 1977, pp. 74–85, ISBN0-600-39155-8.
Robson, p. 180. Graham Robson, Duesenberg Model A, in The Illustrated Directory of Classic Cars, St. Paul, MN USA, MBI Publishing, 2001, pp. 180–181, ISBN0-7603-1049-1.
Robson, p. 181. Graham Robson, Duesenberg Model A, in The Illustrated Directory of Classic Cars, St. Paul, MN USA, MBI Publishing, 2001, pp. 180–181, ISBN0-7603-1049-1.
Kimes, p. 231. Kimes (a cura di), Duesenberg, in The Classic Car, Des Plaines, IL USA, Classic Car Club of America, 1990, pp. 229–269, ISBN0-9627868-0-2, LCCN90084421.
Kimes, p. 230. Kimes (a cura di), Duesenberg, in The Classic Car, Des Plaines, IL USA, Classic Car Club of America, 1990, pp. 229–269, ISBN0-9627868-0-2, LCCN90084421.
Vance. Bill Vance, Motoring Memories: Duesenberg Model A, su autos.ca, Trader, 15 aprile 2005. URL consultato il 19 gennaio 2014 (archiviato dall'url originale il 20 gennaio 2014).