Title: Vital water graphics : an overview of the state of the world's fresh and marine waters /
Authors: Diop, Salif.; M'mayi, Patrick.; Lisbjerg, Dennis.; Johnstone, Ralph; United Nations Environment Programme; GRID--Arendal.
Publisher: United Nations Environment Programme,
Year: 2002
Subjects: Water-supply.; Water conservation.; Fresh water.; Water quality.; Groundwater.; Eau Approvisionnement.; Eau Conservation.; Eau douce.; Eau Qualité.; Eau souterraine.