| APA | AOO. (2012, February 9). In Acronym Geek. Retrieved 20:50, February 9, 2012, from http://www.acronymgeek.com/AOO |
| MLA | "AOO." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/AOO>. |
| MHRA | 'AOO', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/AOO> [accessed 9 February 2012] |
| Chicago | "AOO", http://www.acronymgeek.com/AOO (accessed February 9, 2012). |
| CBE/CSE | AOO [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/AOO. |
| Bluebook | AOO, http://www.acronymgeek.com/AOO (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AOO, http://www.acronymgeek.com/AOO (optional description here) (as of Feb. 9, 2012, 20:50). |
| AMA | AOO. Acronym Geek. February 9, 2012, 20:50. Available at: http://www.acronymgeek.com/AOO. Accessed February 9, 2012, 20:50. |