American Psychological Association (APA)
ASPO. (n.d.). MDA Glossary. Retrieved June 8, 2023, from website: http://www.expertglossary.com/definition/aspo.
Chicago Manual of Style (CMS)
ASPO. www.mda.mil. MDA Glossary. DoD Missile Defense Agency. http://www.expertglossary.com/definition/aspo (accessed: June 8, 2023).
Modern Language Association (MLA)
"ASPO." MDA Glossary. DoD Missile Defense Agency. 8 June. 2023 http://www.expertglossary.com/definition/aspo.