Tapay, N. E. (1977). The effects of farmer's education on production and income [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tapay, Nenita Estolano. The Effects of Farmer's Education on Production and Income [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Tapay, Nenita Estolano. The Effects of Farmer's Education on Production and Income [microform]. Photoduplication Service, University of the Philippines Library, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.