Development Bank of the Philippines & Environmental Infrastructure Support Credit Programme. (1999). An Evaluation guide for environmental projects in the pig farming industry. Development Bank of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Development Bank of the Philippines و Environmental Infrastructure Support Credit Programme. An Evaluation Guide for Environmental Projects in the Pig Farming Industry. [Makati City]: Development Bank of the Philippines, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Development Bank of the Philippines و Environmental Infrastructure Support Credit Programme. An Evaluation Guide for Environmental Projects in the Pig Farming Industry. Development Bank of the Philippines, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.