Caselli. Technology Differences over Space and Time. Princeton University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCaselli. Technology Differences over Space and Time. Princeton University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCaselli. Technology Differences over Space and Time. Princeton University Press.
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