Não informado. Thrust for educational leadership. Association of California School Administrators.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Thrust for Educational Leadership. Burlingame, Calif: Association of California School Administrators.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Thrust for Educational Leadership. Association of California School Administrators.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.