EPA (1990): Technologies for Upgrading Existing or Designing New Drinking Water Treatment Facilities. Cincinnati: US Environmental Protection Agency (EPA) URL [Accessed: 30.05.2018]
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.