Cita APA

(2007). Principles of town water supply and sanitation. Washington DC: The World Bank.

Chicago Style Citation

Principles of Town Water Supply and Sanitation. Washington DC: The World Bank, 2007.

Cita MLA

Principles of Town Water Supply and Sanitation. Washington DC: The World Bank, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.