Osmena, S. (1977). Democratic government in the Philippines: Extension of remarks of Hon. Leonidas C. Dyer of Missouri in the House of Representatives, Tuesday, Jan. 6, 1926 [microform]. Photoduplication Service, University of the Philippines Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Osmena, Sergio. Democratic Government in the Philippines: Extension of Remarks of Hon. Leonidas C. Dyer of Missouri in the House of Representatives, Tuesday, Jan. 6, 1926 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Osmena, Sergio. Democratic Government in the Philippines: Extension of Remarks of Hon. Leonidas C. Dyer of Missouri in the House of Representatives, Tuesday, Jan. 6, 1926 [microform]. Photoduplication Service, University of the Philippines Library, 1977.