Roark, R. J., Budynas, R. G., & Sadegh, A. M. (2020). Roark's formulas for stress and strain (Ninth edition.). McGraw-Hill Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoark, Raymond J., Richard G. Budynas, और Ali M. Sadegh. Roark's Formulas for Stress and Strain. Ninth edition. New York: McGraw-Hill Education, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRoark, Raymond J., et al. Roark's Formulas for Stress and Strain. Ninth edition. McGraw-Hill Education, 2020.
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