books.google.de - Produced biennially, The World’s Water provides a timely examination of the key issues surrounding freshwater resources and their use. Each new volume identifies and explains the most significant trends worldwide, and offers the best data available on a variety of topics related to water. The 2008-2009...http://books.google.de/books/about/The_World_s_Water_2008_2009.html?hl=de&id=_wd-s1FB7VEC&utm_source=gb-gplus-shareThe World's Water, 2008-2009