World Bank. Transportation, Water and Telecommunications Dept, & Kalbermatten, J. M. (1980). Appropriate technology for water supply and sanitation. Transportation, Water and Telecommunication Dept., World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Bank. Transportation, Water and Telecommunications Dept, و John M. Kalbermatten. Appropriate Technology for Water Supply and Sanitation. Washington, D.C.: Transportation, Water and Telecommunication Dept., World Bank, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)World Bank. Transportation, Water and Telecommunications Dept, و John M. Kalbermatten. Appropriate Technology for Water Supply and Sanitation. Transportation, Water and Telecommunication Dept., World Bank, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.