Holsinger, D. B., & Cowell, R. N. (2000). Positioning secondary school education in developing countries: Expansion and curriculum. Unesco, International Institute for Educational Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Holsinger, Donald B., و Richard N. Cowell. Positioning Secondary School Education in Developing Countries: Expansion and Curriculum. Paris: Unesco, International Institute for Educational Planning, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Holsinger, Donald B., و Richard N. Cowell. Positioning Secondary School Education in Developing Countries: Expansion and Curriculum. Unesco, International Institute for Educational Planning, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.