vision mondiale de la question de l'eau ("Vision on Water, Life and Environment in the 21st Century)

ENVIRONMENT
da World Water Vision (Vision on Water, Life and Environment in the 21st Century)
en World Water Vision (Vision on Water, Life and Environment in the 21st Century)
es Perspectiva Mundial del Agua , Visión Mundial del Agua , Visión a Largo Plazo del Agua, la Vida y el Medio Ambiente en el Siglo XXI
nl Wereld Water Visie (vision on Water, Life and Environment in the 21st Century)