Sierra, J., & Myers, M. (2014). E-I-E-I-O: How old MacDonald got his farm (with a little help from a hen) (First edition.). Candlewick Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sierra, Judy, و Matthew Myers. E-I-E-I-O: How Old MacDonald Got His Farm (with a Little Help from a Hen). First edition. Somerville, Massachusetts: Candlewick Press, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sierra, Judy, و Matthew Myers. E-I-E-I-O: How Old MacDonald Got His Farm (with a Little Help from a Hen). First edition. Candlewick Press, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.