Dahl, T., Dick, J., Swords, J., Wilen, B. 2015. Data Collection Requirements and Procedures for Mapping Wetland, Deepwater, and Related Habitats of the United States (version 2). United States Fish and Wildlife Service, Madison, WI.

Assessment, habitat, wetlands

https://www.fws.gov/wetlands/Documents/Data-Collection-Requirements-and-Procedures-for-Mapping-Wetland-Deepwater-and-Related-Habitats-of-the-United-States.pdf

This document describes technical procedures developed by the U.S. Fish and Wildlife Service to provide the quality assurance measures and protocols necessary to produce accurate wetland maps.