Post History

Source: https://writers.stackexchange.com/q/19806
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/

In a nonfiction snippet I'm writing about [metrology](https://www.oxforddictionaries.com/us/definition/american_english/metrology), specifically the term _micron_ being used in reference to the unit multiple _micrometre_ ([AmE](https://en.wikipedia.org/wiki/Comparison_of_American_and_British_English): _micrometer_) I need to cite Resolution 7 of the 13<sup>th</sup> CGPM<sup>1</sup>, but I'm not sure which year to put it as.

Even though the Wikipedia page, ["Micrometre"](https://en.wikipedia.org/wiki/Micrometre), states that the term _micron_ was "officially revoked ... in 1967", the source it cites—the English version of this Resolution from the the SI Brochure, 8<sup>th</sup> edition—does not even say it was solely 1967.<sup>2</sup> In fact, neither the [English version](http://www.bipm.org/en/CGPM/db/13/7/) nor the official [French version](http://www.bipm.org/fr/CGPM/db/13/7/) lists it as such. According to both of these sources, the year it's listed as is "1967/1968", and I can't find any information that specifically lists either one of these specifically as the most appropriate year with which to cite it.

Should I cite it as both or just stick with one? And if the latter, then which one should I go by?<sup>3</sup>

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### Footnotes

1. [According to NIST](http://physics.nist.gov/cuu/Units/acronyms.html),<sup>4</sup> the CGPM stands for _Conférence Générale des Poids et Mesures_ (En: "General Conference on Weights and Measures"), and 

2. Then, again, it is listed as merely a _Start_-class article, so meh; I wouldn't take it **too** seriously. Lol.

3. I'm thinking it can be done any of the following 3 ways, but obviously which one you choose depends heavily on context, and I'm not sure which one this context would lean toward, if any.

4. [National Institute of Standards and Technology](http://www.nist.gov/public_affairs/nandyou.cfm)

Original score: 2