BILLIET, W. E. (1982). Small gas engines and power transmission systems: A repa-ir and maintenance handbook. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBILLIET, Walter E. Small Gas Engines and Power Transmission Systems: A Repa-ir and Maintenance Handbook. New Jersey: Prentice-Hall, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBILLIET, Walter E. Small Gas Engines and Power Transmission Systems: A Repa-ir and Maintenance Handbook. Prentice-Hall, 1982.
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