Cita APA

(2006). Water sanitation and health electronic library: A compendium of information on water, sanitation and health (4. edition, versión 4.0.). [Geneva, Switzerland]: World Health Organization.

Citación estilo Chicago

Water Sanitation and Health Electronic Library: A Compendium of Information On Water, Sanitation and Health. 4. edition, versión 4.0. [Geneva, Switzerland]: World Health Organization, 2006.

Cita MLA

Water Sanitation and Health Electronic Library: A Compendium of Information On Water, Sanitation and Health. 4. edition, versión 4.0. [Geneva, Switzerland]: World Health Organization, 2006.