Taylor, B.
(1991),
The International System of Units (SI) 1991 edition, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.330e1991 (Accessed May 8, 2026)
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The International System of Units (SI) 1991 edition
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Special Publication (NIST SP) - 1991
Report Number
1991
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NIST Pubs
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Created January 1, 1991, Updated May 7, 2026