Robert Williams, Kustom Kulture : Von Dutch, Ed "Big Daddy" Roth, Robert Williams and Others; C.R. Stecyk, Guest Curator, with Bolton Colburn, Last Gasp, , 20–22 p. (ISBN978-0-86719-405-0, lire en ligne)
Gina Misiroglu, American Countercultures : An Encyclopedia of Nonconformists, Alternative Lifestyles, and Radical Ideas in U.S. History, Routledge, , 387–388 p. (ISBN978-1-317-47729-7, lire en ligne)
(en) Emmis Communications, Los Angeles Magazine, Emmis Communications, (lire en ligne)
RJ Smith, « Triumph of the Wheels », Los Angeles Magazine, Los Angeles, California, Emmis Communications, vol. 74, no 5, , p. 90–97, 180–187 (ISSN1522-9149)
