Sís, P. (2021). Nicky & Vera: A quiet hero of the Holocaust and the children he rescued (First edition.). Norton Young Readers, and imprint of W.W. Norton & Company, independent Publishers since 1923.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sís, Peter. Nicky & Vera: A Quiet Hero of the Holocaust and the Children He Rescued. First edition. New York, N.Y.: Norton Young Readers, and imprint of W.W. Norton & Company, independent Publishers since 1923, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sís, Peter. Nicky & Vera: A Quiet Hero of the Holocaust and the Children He Rescued. First edition. Norton Young Readers, and imprint of W.W. Norton & Company, independent Publishers since 1923, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.