How to abbreviate Sierra?

The ways to abbreviate Sierra.

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Sierra(Phonetics, Alphabet, Navy phonetic alphabet)
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APASmart Define. (2018). sierra. Retrieved September 25, 2026, from http://smartdefine.org/sierra/abbreviations/a/Alphabet
ChicagoSmart Define. 2018. "sierra" http://smartdefine.org/sierra/abbreviations/a/Alphabet (accessed September 25, 2026).
HarvardSmart Define 2018, sierra, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/sierra/abbreviations/a/Alphabet>.
MLASmart Define. "sierra" 26 January 2018. Web. 25 September 2026. <http://smartdefine.org/sierra/abbreviations/a/Alphabet>