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5 Things You Didn't Know About the Metric System

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  • "A Brief History of Measurement Systems."National Institute Of Standards and Technology. (September 9, 2011)
  • Associated Press Style Book. (September 9, 2011)
  • Brumfiel, Goeff. "Kilogram adjustment courts controversy." Nature. Jan. 28, 2011.(September 9, 2011)
  • National Institute of Standards and Technology Web site. (September 9, 2011)
  • "The International System of Units." Bureau International des Poids et Mesures. (September 9, 2011)
  • "National Metric Week in October." National Council of Teachers and Mathematics. (September 9, 2011)
  • "Practical Guide to the International System of Units. Colorado State University. (September 9, 2011)
  • "Toward a Metric America." National Institute of Standards and Technology. May 2002. (September 9, 2011)
  • U.S. Metric Association Web Site. (September 9, 2011)
  • "Weights and Measures." The CIA World Factbook. (September 9, 2011)