Reference

Sample [Whole Book] David Kosiur. 2001. Understanding Policy-Based Networking (2nd. ed.). Wiley, New York, NY.
Sample [Video] Barack Obama. 2008. A more perfect union. Video. (5 March 2008). Retrieved March 21, 2008 from http://video.google.com/videoplay?docid=6528042696351994555
Sample [Online Document] Wikipedia. 2017. WikipediA: the Free Encyclopedia. Retrieved from https://www.wikipedia.org/.