American Psychological Association (APA)
ESS. (n.d.). ATIS Telecom Glossary 2007. Retrieved April 2, 2023, from website: http://www.expertglossary.com/definition/ess.
Chicago Manual of Style (CMS)
ESS. www.atis.org. ATIS Telecom Glossary 2007. ATIS. http://www.expertglossary.com/definition/ess (accessed: April 2, 2023).
Modern Language Association (MLA)
"ESS." ATIS Telecom Glossary 2007. ATIS. 2 April. 2023 http://www.expertglossary.com/definition/ess.