Rola, A. (1999). Philippine crop protection policy: Implications for food safety and farm profitability in the vegetable sector. Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rola, A.C. Philippine Crop Protection Policy: Implications for Food Safety and Farm Profitability in the Vegetable Sector. College, Laguna: Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Rola, A.C. Philippine Crop Protection Policy: Implications for Food Safety and Farm Profitability in the Vegetable Sector. Institute of Strategic Planning & Policy Studies, College of Public Affairs, University of the Philippines Los Banos, 1999.