United States. Office of Electric Power Regulation. (1981). Hydropower sites of the United States, developed and undeveloped: River basin maps showing site locations (conventional, pumped storage, retired). Federal Energy Regulatory Commission, Office of Electric Power Regulation.
Chicago Style (17th ed.) CitationUnited States. Office of Electric Power Regulation. Hydropower Sites of the United States, Developed and Undeveloped: River Basin Maps Showing Site Locations (conventional, Pumped Storage, Retired). [Washington, D.C.?]: Federal Energy Regulatory Commission, Office of Electric Power Regulation, 1981.
MLA (9th ed.) CitationUnited States. Office of Electric Power Regulation. Hydropower Sites of the United States, Developed and Undeveloped: River Basin Maps Showing Site Locations (conventional, Pumped Storage, Retired). Federal Energy Regulatory Commission, Office of Electric Power Regulation, 1981.