(2007). Principles of town water supply and sanitation. Washington DC: The World Bank.
シカゴスタイル引用形Principles of Town Water Supply and Sanitation. Washington DC: The World Bank, 2007.
MLA引用形式Principles of Town Water Supply and Sanitation. Washington DC: The World Bank, 2007.
警告: この引用は必ずしも正確ではありません.