Bennagen, P. L. (2004). Capability building for sustainability: A handbook. United Nations Development Programme Global Environment Facility/Royal Netherlands Embassy Small Grants Programme-Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bennagen, Ponciano L. Capability Building for Sustainability: A Handbook. Makati City: United Nations Development Programme Global Environment Facility/Royal Netherlands Embassy Small Grants Programme-Philippines, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Bennagen, Ponciano L. Capability Building for Sustainability: A Handbook. United Nations Development Programme Global Environment Facility/Royal Netherlands Embassy Small Grants Programme-Philippines, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.