THE XERCES SOCIETY FOR INVERTEBRATE CONSERVATION

Aquatic Invertebrates in Pacific Northwest Freshwater Wetlands
An Identification Guide and Educational Resource

Data analysis

Books and book chapters
Helgen JC and MC Gernes. 2001. Monitoring the Condition of Wetlands: Indexes of Biological Integrity Using Invertebrates and Vegetation. In RB Rader, DP Batzer, and SA Wissinger. 2001 John Wiley & Sons.