APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. (1990). Fostering flexibility in the engineering work force. National Academy Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. Fostering Flexibility in the Engineering Work Force. Washington, D.C.: National Academy Press, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc. Fostering Flexibility in the Engineering Work Force. National Academy Press, 1990.
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