America's only metric road - CNN.com
Metrication in the United States - Wikipedia
U.S. to Metric Conversions 7.5 - YouTube
Metrication in other countries – US Metric Association
Why Isn't the U.S. on the Metric System? | HowStuffWorks
The Smithsonian and the Metric System | More Than A Mile Behind: America and the Metric System
Why America won't go metric | CNN Politics
United States customary units - Wikipedia
A Case for Liter-Ship: Advocates Cheer Lincoln Chafee's Metric Proposal
Why Won't America Go Metric? | Time
US to Metric Conversions | Metric conversions, Math resources, Studying math
US Metric Association (@usma_metric) / Twitter
Metrication in other countries – US Metric Association
Metrication in the United States - Wikipedia
U.S. customary and metric units | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy - YouTube
Busting Myths about the Metric System | NIST
U.S. Metrication | NIST
The U.S. has resisted the metric system for more than 50 years
THE UNITED STATES AND THE METRIC SYSTEM
United States National Bureau of Standards Metric Conversion Card] - UNT Digital Library
Metric Pioneer | Effort
Whatever Happened to the Metric System?' by John Bemelmans Marciano - The New York Times
Why Doesn't the U.S. Use the Metric System? | Britannica
Pew Research Center | More Than A Mile Behind: America and the Metric System
