1. 1. NOAA, 2013: National Coastal Population Report: Population Trends from 1970 to 2020, 22 pp., National Oceanic and Atmospheric Administration, U.S. Census Bureau. [Available online at http://stateofthecoast.noaa.gov/features/coastal-population-report.pdf]
2. 2. --, cited 2012: The U.S. Population Living in Coastal Watershed Counties. U.S. Department of Commerce, National Oceanic and Atmospheric Administration. [Available online at http:// stateofthecoast.noaa.gov/population/welcome.html]
3. --, 2012: NOAA's List of Coastal Counties for the Bureau of the Census. Statistical Abstract Series. [Available online at http:// www.census.gov/geo/landview/lv6help/coastal_cty.pdf]
4. U.S. Census Bureau, cited 2010: 2010 Population Finder. U.S. Census Bureau, U.S. Department of Commerce. [Available online at http://www.census.gov/popfinder/] 3. NOAA, cited 2012: Spatial Trends in Coastal Socioeconomics Demographic Trends Database: 1970-2010. National Ocean Service. [Available online at http://coastalsocioeconomics.noaa. gov/download/download2.html]
5. 4. Bookman, C. A., T. J. Culliton, and M. A. Warren, 1999: Trends in US Coastal Regions 1970-1998: Addendum to the Proceedings. Trends and Future Challenges for US National Ocean and Coastal Policy, 31 pp., National Oceanic and Atmospheric Administration Special Projects Office, National Ocean Service, Silver Spring, MD. [Available online at http://www.gpo.gov/fdsys/pkg/CZIC-gc1018-t736-add-1999/pdf/CZIC-gc1018-t736-add-1999.pdf]