Value : counting ecosystems as water infrastructure / Counting ecosystems as water infrastructure Emerton, L. Bos, Elroy. IUCN Water and Nature Initiative. Ecosystem management Water-supply Water conservation Water quality. 333 IUC 2004 A64 Or. Gland, Switzerland : IUCN, c2004. c2004. Text 88 p. : http://www.loc.gov/catdir/toc/fy0702/2005360251.html http://www.iucn.org/themes/wani/pub/VALUE.pdf http://www.loc.gov/catdir/enhancements/fy0732/2005360251-d.html