Não informado. (2004). American Engineer: The railway mechanical monthly. Simmons Boardman Publishing.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. American Engineer: The Railway Mechanical Monthly. New York: Simmons Boardman Publishing, 2004.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. American Engineer: The Railway Mechanical Monthly. Simmons Boardman Publishing, 2004.
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