Hertan, C. (2013). Power chess for kids: More ways to think ahead and become one of the best players in your school. New in Chess.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hertan, Charles. Power Chess for Kids: More Ways to Think Ahead and Become One of the Best Players in Your School. Alkmaar, Netherlands: New in Chess, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hertan, Charles. Power Chess for Kids: More Ways to Think Ahead and Become One of the Best Players in Your School. New in Chess, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.