Cita APA

(2012). Progress on drinking water and sanitation. UNICEF and World Health Organization.

Citación estilo Chicago

Progress on Drinking Water and Sanitation. New York: UNICEF and World Health Organization, 2012.

Cita MLA

Progress on Drinking Water and Sanitation. UNICEF and World Health Organization, 2012.

Warning: These citations may not always be 100% accurate.