APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.