APA (7 वां संस्करण) प्रशस्ति पत्र
Pursell, C. W. (2007). The machine in America: A social history of technology (2nd ed.). Johns Hopkins University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Pursell, Carroll W. The Machine in America: A Social History of Technology. 2nd ed. Baltimore: Johns Hopkins University Press, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Pursell, Carroll W. The Machine in America: A Social History of Technology. 2nd ed. Johns Hopkins University Press, 2007.
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