Cayao, M. A. (1975). The extent of forest conservation performed by the Bureau of Forestry and its effects on the people [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cayao, Marcelina A. The Extent of Forest Conservation Performed by the Bureau of Forestry and Its Effects on the People [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Cayao, Marcelina A. The Extent of Forest Conservation Performed by the Bureau of Forestry and Its Effects on the People [microform]. Photoduplication Service, University of the Philippines Library, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.