Department of Education, Culture and Sports, & UPecon Foundation. (1998). Policy, research and strategic planning unit third elementary education project. Department of Education, Culture and Sports.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Department of Education, Culture and Sports, و UPecon Foundation. Policy, Research and Strategic Planning Unit Third Elementary Education Project. Quezon City: Department of Education, Culture and Sports, 1998.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Department of Education, Culture and Sports, و UPecon Foundation. Policy, Research and Strategic Planning Unit Third Elementary Education Project. Department of Education, Culture and Sports, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.