Association for Supervision and Curriculum Development & Marsh, D. D. (1999). Preparing our schools for the 21st century. Association for Supervision and Curriculum Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Association for Supervision and Curriculum Development و David D. Marsh. Preparing Our Schools for the 21st Century. Alexandria, Va.: Association for Supervision and Curriculum Development, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Association for Supervision and Curriculum Development و David D. Marsh. Preparing Our Schools for the 21st Century. Association for Supervision and Curriculum Development, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.