| APA | KOA. (2012, February 11). In Acronym Geek. Retrieved 17:28, February 11, 2012, from http://www.acronymgeek.com/KOA |
| MLA | "KOA." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/KOA>. |
| MHRA | 'KOA', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/KOA> [accessed 11 February 2012] |
| Chicago | "KOA", http://www.acronymgeek.com/KOA (accessed February 11, 2012). |
| CBE/CSE | KOA [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/KOA. |
| Bluebook | KOA, http://www.acronymgeek.com/KOA (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KOA, http://www.acronymgeek.com/KOA (optional description here) (as of Feb. 11, 2012, 17:28). |
| AMA | KOA. Acronym Geek. February 11, 2012, 17:28. Available at: http://www.acronymgeek.com/KOA. Accessed February 11, 2012, 17:28. |