Bresnahan, Timothy F. (June 1987). «Competition and Collusion in the American Automobile Industry: The 1955 Price War». The Journal of Industrial Economics35 (4 The Empirical Renaissance in Industrial Economics): 457-482. doi:10.2307/2098583.
hemmings.com
Farrell, Jim; Farrell, Cheryl (November 2005). «Ford's Stylerama». Hemmings Classic Car. Consultado el 17 de marzo de 2013.
michigan.gov
«Grayling Forest Management Unit». Michigan Michigan Department of Natural Resources and Environment. Consultado el 17 de marzo de 2013.