| APA | ACEO. (2012, February 17). In Acronym Geek. Retrieved 07:21, February 17, 2012, from http://www.acronymgeek.com/ACEO |
| MLA | "ACEO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/ACEO>. |
| MHRA | 'ACEO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/ACEO> [accessed 17 February 2012] |
| Chicago | "ACEO", http://www.acronymgeek.com/ACEO (accessed February 17, 2012). |
| CBE/CSE | ACEO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/ACEO. |
| Bluebook | ACEO, http://www.acronymgeek.com/ACEO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ACEO, http://www.acronymgeek.com/ACEO (optional description here) (as of Feb. 17, 2012, 07:21). |
| AMA | ACEO. Acronym Geek. February 17, 2012, 07:21. Available at: http://www.acronymgeek.com/ACEO. Accessed February 17, 2012, 07:21. |