Solar and Renewable Energy

Unlike fossil fuels, which are exhaustible, renewable energy sources regenerate and can be sustained indefinitely. US Energy Information Administration. (2013, September 27). Renewable energy sources-energy explained-your guide to understanding energy.

APA Tutorial

Definition

APA (American Psychological Association) Citation Style was first developed 80 years ago by social scientists seeking to establish sound standards of communication.  Since that time, it has been adopted by leaders in many fields and has been used by writers around the world.
American Psychological Association. (n. d.). About APA style. APA Style. Retrieved from http://www.apastyle.org/about-apa-style.aspx