Ramos, V. O. (1999). Experiences and lessons learned at the Department of Environment and Natural Resources. Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Banos.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramos, Victor O. Experiences and Lessons Learned at the Department of Environment and Natural Resources. College, Laguna: Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ramos, Victor O. Experiences and Lessons Learned at the Department of Environment and Natural Resources. Institute of Strategic Planning and Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.