Não informado. (2009). Proceedings of the American Transit Engineering Association. American Transit Engineering Association.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Proceedings of the American Transit Engineering Association. New York: American Transit Engineering Association, 2009.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Proceedings of the American Transit Engineering Association. American Transit Engineering Association, 2009.
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