Não informado. (2004). Railway Mechanical and Electrical Engineer. Simmons Boardman Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Railway Mechanical and Electrical Engineer. Philadelphia, Pa: Simmons Boardman Publishing, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Railway Mechanical and Electrical Engineer. Simmons Boardman Publishing, 2004.
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