Perry, A., & Snow, A. (2003). Here's what you do when you can't find your shoe: Ingenious inventions for pesky problems. Atheneum Books for Young Readers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Perry, Andrea, و Alan Snow. Here's What You Do When You Can't Find Your Shoe: Ingenious Inventions for Pesky Problems. New York: Atheneum Books for Young Readers, 2003.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Perry, Andrea, و Alan Snow. Here's What You Do When You Can't Find Your Shoe: Ingenious Inventions for Pesky Problems. Atheneum Books for Young Readers, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.