UNDP-World Bank Water and Sanitation Program & Whittington, D. (1992). Household demand for improved sanitation services: A case study of Kumasi, Ghana. UNDP-World Bank Water and Sanitation Program, World Bank.
Chicago-Zitierstil (17. Ausg.)UNDP-World Bank Water and Sanitation Program und Dale Whittington. Household Demand for Improved Sanitation Services: A Case Study of Kumasi, Ghana. Washington, DC: UNDP-World Bank Water and Sanitation Program, World Bank, 1992.
MLA-Zitierstil (9. Ausg.)UNDP-World Bank Water and Sanitation Program und Dale Whittington. Household Demand for Improved Sanitation Services: A Case Study of Kumasi, Ghana. UNDP-World Bank Water and Sanitation Program, World Bank, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.