Gates, B., Myhrvold, N., & Rinearson, P. (1996). The road ahead (Completely revised and up-to-date.). Penguin Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGates, Bill, Nathan Myhrvold, और Peter Rinearson. The Road Ahead. Completely revised and up-to-date. New York: Penguin Books, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGates, Bill, et al. The Road Ahead. Completely revised and up-to-date. Penguin Books, 1996.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.