http://www.bcgwa.org/waterwell/4dhydrologic.html
[Accessed: 31.10.2012]
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What is a perspective?
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.
