Estellon, P. (2014). It's about time: Untangling everything you need to know about time. Owlkids Books Inc..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Estellon, Pascale. It's About Time: Untangling Everything You Need to Know About Time. Toronto: Owlkids Books Inc., 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Estellon, Pascale. It's About Time: Untangling Everything You Need to Know About Time. Owlkids Books Inc., 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.