Não informado. (1988). Diesel progress engines & drives. Diesel & Gas Turbine Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Diesel Progress Engines & Drives. Brookfield, Wis: Diesel & Gas Turbine Publications, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Diesel Progress Engines & Drives. Diesel & Gas Turbine Publications, 1988.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.