How to abbreviate Sierra?

The ways to abbreviate Sierra.

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Sierra(Army phonetic alphabet, Military alphabet, Military phonetics)
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APASmart Define. (2018). sierra. Retrieved September 29, 2026, from http://smartdefine.org/sierra/abbreviations/a/Military_Communications
ChicagoSmart Define. 2018. "sierra" http://smartdefine.org/sierra/abbreviations/a/Military_Communications (accessed September 29, 2026).
HarvardSmart Define 2018, sierra, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/sierra/abbreviations/a/Military_Communications>.
MLASmart Define. "sierra" 26 January 2018. Web. 29 September 2026. <http://smartdefine.org/sierra/abbreviations/a/Military_Communications>