Congressional Budget Office. (1993). Trends in public infrastructure outlays. Washington, DC: U.S. Congress.
2.
National Council on Public Works Improvement. (1988). Fragile foundations: A report on America’s public works. Washington, DC: Government Printing Office.
3.
U.S. Army Corps of Engineers, Institute forWater Resources. (1994). Issues in deferred maintenance(IWR Report No. 94-FIS-16). Washington, DC: U.S. Army Corps of Engineers, Water Resources Support Center.