Links:U.S. customary units
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Revision as of 17:01, 21 December 2010 by Boris Tsirelson (talk | contributions)
- General Tables of Units of Measurement Appendix C of NIST Handbook 44
- Weights and Measures of the United States - a brief history U.S. Department of Commerce, National Bureau of Standards (NBS) Special Publication 447, 1976