Peg Hall. (2002). "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPeg Hall. "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books, 2002.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPeg Hall. "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books, 2002.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.