Killen, N. (2011). Fluff and Billy. Sterling Children's Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKillen, Nicola. Fluff and Billy. New York: Sterling Children's Books, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKillen, Nicola. Fluff and Billy. Sterling Children's Books, 2011.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.