Time-Life Books. (1999). People who shaped the century. Time-Life Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTime-Life Books. People Who Shaped the Century. Alexandria, Va: Time-Life Books, 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTime-Life Books. People Who Shaped the Century. Time-Life Books, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.