APA (7 वां संस्करण) प्रशस्ति पत्र
Rao, P. N. (2013). Manufacturing technology: Foundry, forming and welding (4th ed.). McGraw Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Rao, P N. Manufacturing Technology: Foundry, Forming and Welding. 4th ed. New Delhi: McGraw Hill Education, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Rao, P N. Manufacturing Technology: Foundry, Forming and Welding. 4th ed. McGraw Hill Education, 2013.
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