Mallonga, R. S. (1976). The supervisory practices of elementary school principals in the Division of Cagayan [microform. Photoduplication Service University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mallonga, Rosario Singson. The Supervisory Practices of Elementary School Principals in the Division of Cagayan [microform. Quezon City: Photoduplication Service University of the Philippines Library, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mallonga, Rosario Singson. The Supervisory Practices of Elementary School Principals in the Division of Cagayan [microform. Photoduplication Service University of the Philippines Library, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.