Mantell, M. I. (1963). Orientation in engineering (2nd ed.). National Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMantell, Murray I. Orientation in Engineering. 2nd ed. Manila: National Book Store, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMantell, Murray I. Orientation in Engineering. 2nd ed. National Book Store, 1963.
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