Organisation for Economic Co-operation and Development, ProQuest (Firm), & Tremolet, S. (2011). Benefits of investing in water and sanitation: An OECD perspective. OECD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development, ProQuest (Firm), و Sophie Tremolet. Benefits of Investing in Water and Sanitation: An OECD Perspective. [Paris]: OECD, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development, et al. Benefits of Investing in Water and Sanitation: An OECD Perspective. OECD, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.