The Impact of federal programs on wetlands : a report to Congress / by the Secretary of the Interior.

v. 1. The Lower Mississippi Alluvial Plain and the Prairie Pothole Region
v. 2. The Everglades, coastal Louisiana, Galveston Bay, Puerto Rico, California's Central Valley, western riparian areas, southeastern and western Alaska, the Delmarva Peninsula, North Carolina, northeastern New Jersey, Michigan, and Nebraska.