books.google.it - A joint undertaking of the 24 UN agencies comprising UN-Water, and in partnership with governments and other entities concerned with freshwater issues, this volume, covering as it does all regions and most countries of the world, provides an up-to-date global overview of the state and uses of freshwater,...http://books.google.it/books/about/Water.html?hl=it&id=ujf0kkNF2H8C&q=hydrological&utm_source=gb-gplus-shareWater
