| APA | EXOA. (2012, February 15). In Acronym Geek. Retrieved 19:52, February 15, 2012, from http://www.acronymgeek.com/EXOA |
| MLA | "EXOA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EXOA>. |
| MHRA | 'EXOA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EXOA> [accessed 15 February 2012] |
| Chicago | "EXOA", http://www.acronymgeek.com/EXOA (accessed February 15, 2012). |
| CBE/CSE | EXOA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EXOA. |
| Bluebook | EXOA, http://www.acronymgeek.com/EXOA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EXOA, http://www.acronymgeek.com/EXOA (optional description here) (as of Feb. 15, 2012, 19:52). |
| AMA | EXOA. Acronym Geek. February 15, 2012, 19:52. Available at: http://www.acronymgeek.com/EXOA. Accessed February 15, 2012, 19:52. |