Gardner. Empowerment and Interconnectivity. Penn State University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGardner. Empowerment and Interconnectivity. Penn State University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGardner. Empowerment and Interconnectivity. Penn State University Press.
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