Harris, F. (1989). Modern construction equipment and methods. Longman Scientific & Technical ; J. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarris, Frank. Modern Construction Equipment and Methods. Harlow, Essex, England : New York: Longman Scientific & Technical ; J. Wiley, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHarris, Frank. Modern Construction Equipment and Methods. Longman Scientific & Technical ; J. Wiley, 1989.
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