APA (7 वां संस्करण) प्रशस्ति पत्र
Robertson, S. (2020). B C, before computers: On information technology from writing to the age of digital data. Open Book Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Robertson, Stephen. B C, Before Computers: On Information Technology from Writing to the Age of Digital Data. Cambridge, England: Open Book Publishers, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Robertson, Stephen. B C, Before Computers: On Information Technology from Writing to the Age of Digital Data. Open Book Publishers, 2020.
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