APA
Wright D. K., . (1987). The Harley-Davidson motor Company. USA: Motorbooks International.
Chicago
Wright David K, . 1987. The Harley-Davidson motor Company. USA: Motorbooks International.
Harvard
Wright D. K., . (1987). The Harley-Davidson motor Company. USA: Motorbooks International.
MLA
Wright David K, . The Harley-Davidson motor Company. USA: Motorbooks International. 1987.