Johnson, R. A. (2005). Six men who built the modern auto industry. St. Paul MN Motorbooks.
Lua i Stíl Chicago (17ú heag.)Johnson, Richard A. Six Men Who Built the Modern Auto Industry. [s.l]: St. Paul MN Motorbooks, 2005.
Lua MLA (9ú heag.)Johnson, Richard A. Six Men Who Built the Modern Auto Industry. St. Paul MN Motorbooks, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.