توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Peg Hall. (2002). "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Peg Hall. "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books, 2002.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Peg Hall. "Whose Nose Is This?: A Look at Beaks, Snouts, and Trunks (Whose Is It?)". Picture Window Books, 2002.