Brewster, David (1832). The Edinburgh Encyclopaedia. Vol. 12 (1st American ed.). Joseph and Edward Parker. Retrieved 2015-10-09. https://books.google.com/books?id=17RGAQAAIAAJ&pg=PA572
Dingler, Johann Gottfried (1823). Polytechnisches Journal (in German). Vol. 11. Stuttgart, Germany: J.W. Gotta'schen Buchhandlung. Retrieved 2015-10-09. https://books.google.com/books?id=wF3zAAAAMAAJ&pg=PA500
Prefixes adopted before 1960 already existed before SI. The introduction of the CGS system was in 1873. /wiki/Centimetre%E2%80%93gram%E2%80%93second_system_of_units
"On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023. https://www.bipm.org/en/cgpm-2022/resolution-3
"Metric (SI) Prefixes". NIST. https://www.nist.gov/pml/owm/metric-si-prefixes
"On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023. https://www.bipm.org/en/cgpm-2022/resolution-3