References
- European Commission 2015. Eurostat. <http://ec.europa.eu/eurostat>.
- FMI Corporation 2014. FMI’s U.S. Construction Market Outlook Overview 2014. pp. 72.
- FMI Corporation 2015. FMI’s Construction Outlook - 1st Quarter 2015 Report. pp. 27.
- Government of Canada 2015. Statistics Canada. <http://www.statcan.gc.ca/start-debut-eng.html>.
- Pruell, D. and Blanford, K. 2015. IHS Economics - Global Construction Outlook 2015: Executive Overview. pp. 55.
- United States Census Bureau 2015. <http://www.census.gov/>.
- United States Government 2015. Data and Statistics about the U.S. www.usa.gov/statistics.
- University of Alabama 2015. Cartographic Research Lab, Department of Geography.