First motorcycles: The illustrated history of the motorcycle. New York.
शिकागो स्टाइल उद्धरणFirst Motorcycles: The Illustrated History of the Motorcycle. New York.
एमएलए उद्धरणFirst Motorcycles: The Illustrated History of the Motorcycle. New York.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.