APA (7 वां संस्करण) प्रशस्ति पत्र
Malone, P. M. (2009). Waterpower in Lowell: Engineering and industry in nineteenth-century America. Johns Hopkins University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Malone, Patrick M. Waterpower in Lowell: Engineering and Industry in Nineteenth-century America. Baltimore: Johns Hopkins University Press, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Malone, Patrick M. Waterpower in Lowell: Engineering and Industry in Nineteenth-century America. Johns Hopkins University Press, 2009.
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