United Nations Human Settlements Programme. (2006). Meeting development goals in small urban centres: Water and sanitation in the world's cities, 2006. Earthscan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Nations Human Settlements Programme. Meeting Development Goals in Small Urban Centres: Water and Sanitation in the World's Cities, 2006. London: Earthscan, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United Nations Human Settlements Programme. Meeting Development Goals in Small Urban Centres: Water and Sanitation in the World's Cities, 2006. Earthscan, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.