Nelsen, E., & Ryan, A. (2019). Positive discipline for preschoolers: For their early years-raising children who are responsible, respectful, and resourceful, revised (Unabridged, 4.). Tantor Media.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nelsen, EDD, و Allyson Ryan. Positive Discipline for Preschoolers: For Their Early Years-raising Children Who Are Responsible, Respectful, and Resourceful, Revised. Unabridged, 4. Old Saybrook: Tantor Media, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nelsen, EDD, و Allyson Ryan. Positive Discipline for Preschoolers: For Their Early Years-raising Children Who Are Responsible, Respectful, and Resourceful, Revised. Unabridged, 4. Tantor Media, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.