ED. LOUIS R. HATHAWAY, L. T. H. A. M. O. (1984). PREVENTIVE MAINTENANCE: FUNDAMENTALS OF MACHINE OPERATION. Deere & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रED. LOUIS R. HATHAWAY, LAURENCE T. HAMMAND ALTON M. O\'BANIO. PREVENTIVE MAINTENANCE: FUNDAMENTALS OF MACHINE OPERATION. Deere & Company, 1984.
एमएलए (8वां संस्करण) प्रशस्ति पत्रED. LOUIS R. HATHAWAY, LAURENCE T. HAMMAND ALTON M. O\'BANIO. PREVENTIVE MAINTENANCE: FUNDAMENTALS OF MACHINE OPERATION. Deere & Company, 1984.
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