Environmental Infrastructure Support Credit Program (EISCP) & Development Bank of the Philippines. (1999). Manual on environmental performance monitoring. Development Bank of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Environmental Infrastructure Support Credit Program (EISCP) و Development Bank of the Philippines. Manual on Environmental Performance Monitoring. Makati City: Development Bank of the Philippines, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Environmental Infrastructure Support Credit Program (EISCP) و Development Bank of the Philippines. Manual on Environmental Performance Monitoring. Development Bank of the Philippines, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.