USGS
(2011):
Aral Sea 2011.
Reston:
U.S. Geological Survey (USGS)
URL
[Accessed: 15.12.2011]
Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.