Woodruff, E. (2003). The Ravenmaster's secret: Escape from the Tower of London. Scholastic Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWoodruff, Elvira. The Ravenmaster's Secret: Escape from the Tower of London. New York: Scholastic Press, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWoodruff, Elvira. The Ravenmaster's Secret: Escape from the Tower of London. Scholastic Press, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.