Cowardin, L. M., Carter, V., Golet, F. C., LaRoe, E. T. 1979. Classification of Wetlands and Deepwater Habitats of the United States. United States Fish and Wildlife Service, Washington, DC.

Management, wetlands, Wildlife

https://www.fws.gov/wetlands/Documents/Classification-of-Wetlands-and-Deepwater-Habitats-of-the-United-States.pdf

This classification (to be used in an inventory of wetlands and deepwater habitats of the United States) is intended to describe ecological taxa and arrange them in a system useful to resource managers. Additionally, it is intended to furnish units for mapping and provide uniformity of concept and terms.