1. Wetland Ecology Principles and Conservation;Keddy,2010
2. Wetlands;Mitsch,2000
3. Sustaining the Worlds wetlands; Setting Policies and Resolving Conflicts;Smardon,2009
4. Ecosystems and Human Well Being, Wetlands and Water Synthesis,2005
5. Values and Rewards: Counting and Capturing Ecosystem Water Services for Sustainable Development;Emerton,2005