http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Reinventing water and wastewater systems
Global lessons for improving water management
edited by Paul Seidenstat , David Haarmeyer and Simon Hakim.
Περιλαμβάνει βιβλιογραφίες και ευρετήριο.