National Democratic Institute for International Affairs. (1991). Reforming the Philippine electoral process: Developments 1986-88. National Democratic Institute for International Affairs.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Democratic Institute for International Affairs. Reforming the Philippine Electoral Process: Developments 1986-88. [Washington, D.C.]: National Democratic Institute for International Affairs, 1991.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Democratic Institute for International Affairs. Reforming the Philippine Electoral Process: Developments 1986-88. National Democratic Institute for International Affairs, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.