Leigh, C. W., & Mangold, J. F. (1940). Practical mechanics and strength of materials. McGraw-Hill Book Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeigh, Charles Wilbur, और John Frederick Mangold. Practical Mechanics and Strength of Materials. New York: McGraw-Hill Book Co, 1940.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLeigh, Charles Wilbur, और John Frederick Mangold. Practical Mechanics and Strength of Materials. McGraw-Hill Book Co, 1940.
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