| APA | ACOO. (2012, February 15). In Acronym Geek. Retrieved 10:42, February 15, 2012, from http://www.acronymgeek.com/ACOO |
| MLA | "ACOO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ACOO>. |
| MHRA | 'ACOO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ACOO> [accessed 15 February 2012] |
| Chicago | "ACOO", http://www.acronymgeek.com/ACOO (accessed February 15, 2012). |
| CBE/CSE | ACOO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ACOO. |
| Bluebook | ACOO, http://www.acronymgeek.com/ACOO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ACOO, http://www.acronymgeek.com/ACOO (optional description here) (as of Feb. 15, 2012, 10:42). |
| AMA | ACOO. Acronym Geek. February 15, 2012, 10:42. Available at: http://www.acronymgeek.com/ACOO. Accessed February 15, 2012, 10:42. |