Academic Information Source:
Marston, Sallie. Knox, Paul. Liverman, Dianna. Del Casino, Vincent. Robbins, Paul. ‘World Region in Global Context’. [2014] Upper Saddle River, New Jersey. Pearson Education.
Other Sources:
Bell, F., T. Stacey, and D. Genske. “Mining Subsidence and Its Effect on the Environment: Some Differing Examples.” Springer Link. 1 Dec. 2000. Web. 28 Apr. 2015. <http://link.springer.com/article/10.1007/s002540000140>.
Freeman, Shanna. “How Salt Works” 27 November 2007. HowStuffWorks.com. <http://science.howstuffworks.com/innovation/edible-innovations/salt.htm> 28 April 2015.
Koo, Ingrid. “Eat It with a Grain of Salt.” About.com. 10 Dec. 2014. Web. 28 Apr. 2015. <http://infectiousdiseases.about.com/od/prevention/a/salt.htm>.
Morton Salt Company. ‘About Morton Salt’. Morton Salt Company, Morton Salt Company. www.mortonsalt.com/our-company/about-morton
“OUR LOCATIONS.” Morton Salt. Morton Salt, Inc. Web. 27 Apr. 2015. <http://www.mortonsalt.com/our-company/our-locations>.
Salt Association. ‘Environmental Impact’. Salt Association, Salt Association. Publish Date N/a. Web. March 29, 2015. http://www.saltassociation.co.uk/salt-the-facts/environmental-impact/