Butterworth, C., & Gaggiotti, L. (2011). How did that get in my lunchbox?: The story of food (1st U.S. ed., Reinforced trade ed.). Candlewick Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Butterworth, Christine, و Lucia Gaggiotti. How Did That Get in My Lunchbox?: The Story of Food. 1st U.S. ed., Reinforced trade ed. Somerville, Mass.: Candlewick Press, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Butterworth, Christine, و Lucia Gaggiotti. How Did That Get in My Lunchbox?: The Story of Food. 1st U.S. ed., Reinforced trade ed. Candlewick Press, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.