Valeroso, M. L. (1980). Some factors associated with non-payment of land amortization by Operation Land Transfer beneficiaries in Nueva Ecija [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Valeroso, Manuel L. Some Factors Associated with Non-payment of Land Amortization by Operation Land Transfer Beneficiaries in Nueva Ecija [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Valeroso, Manuel L. Some Factors Associated with Non-payment of Land Amortization by Operation Land Transfer Beneficiaries in Nueva Ecija [microform]. Photoduplication Service, University of the Philippines Library, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.