Nilsson, James W., and Susan A. Riedel. Electric Circuits. 10th ed. Upper Saddle River, NJ: Prentice Hall, 2005. Print.
"Clock." Wikipedia. Wikimedia Foundation, 24 Nov. 2014. Web. 24 Nov. 2014. <http://en.wikipedia.org/wiki/Clock>.
"Base Unit Definitions: Second." Base Unit Definitions: Second. N.p., n.d. Web. 26 Nov. 2014. <http://physics.nist.gov/cuu/Units/second.html>.
"Who Invented the Clock?" Who Invented the Clock? N.p., n.d. Web. 26 Nov. 2014. <http://www.antique-pocket-watch.com/who-invented-the-clock.html>.
Dwyer, Douglas. HowStuffWorks. HowStuffWorks.com, n.d. Web. 26 Nov. 2014. <http://science.howstuffworks.com/atomic-clock.htm>.
"UTC – The World's Time Standard." UTC – Coordinated Universal Time. N.p., n.d. Web. 24 Nov. 2014. <http://www.timeanddate.com/time/aboututc.html>.
Cesium Atomic Clocks. N.p., n.d. Web. <http://tycho.usno.navy.mil%2Fcesium.html>.
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