The Waterfootprint Assessment: Setting the Global Standard

This is a book from 2011 that contains the global standard for ‘water footprint assessment’ as developed and maintained by the Water Footprint Network (WFN). It covers a comprehensive set of definitions and methods for water footprint accounting. It shows how water footprints are calculated for individual processes and products,
as well as for consumers, nations, and businesses. It also includes methods for water footprint sustainability assessment and a library of water footprint response options.

SOURCE: Water Footprint Network