Cita APA (7a ed.)

International Water Supply Association. (1995). IWSA Year Book 1995. International Water Suppley Association.

Cita Chicago Style (17a ed.)

International Water Supply Association. IWSA Year Book 1995. Londres: International Water Suppley Association, 1995.

Cita MLA (9a ed.)

International Water Supply Association. IWSA Year Book 1995. International Water Suppley Association, 1995.