Lumayag, E. J. (1982). Contractual arrangement in abaca production in some selected villages in the Philippines [microform]. University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lumayag, Eutiquio J. Contractual Arrangement in Abaca Production in Some Selected Villages in the Philippines [microform]. Quezon City: University of the Philippines Library, 1982.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Lumayag, Eutiquio J. Contractual Arrangement in Abaca Production in Some Selected Villages in the Philippines [microform]. University of the Philippines Library, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.