Footnote 17
National Research Council. 1999. New Directions in Water Resources Planning for the U.S. Army Corps of Engineers. Washington, DC: The National Academics Press. https://doi.org/10.17226/6128.
"H.R. 6- 99th Congress: Water Resources Development Act of 1986." www.GovTrack.us.1985. August 26, 2018 <https://www.govtrack.us/congress/bills/99/hr6>