| APA | A-CO. (2012, February 10). In Acronym Geek. Retrieved 09:53, February 10, 2012, from http://www.acronymgeek.com/A-CO |
| MLA | "A-CO." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/A-CO>. |
| MHRA | 'A-CO', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/A-CO> [accessed 10 February 2012] |
| Chicago | "A-CO", http://www.acronymgeek.com/A-CO (accessed February 10, 2012). |
| CBE/CSE | A-CO [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/A-CO. |
| Bluebook | A-CO, http://www.acronymgeek.com/A-CO (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, A-CO, http://www.acronymgeek.com/A-CO (optional description here) (as of Feb. 10, 2012, 09:53). |
| AMA | A-CO. Acronym Geek. February 10, 2012, 09:53. Available at: http://www.acronymgeek.com/A-CO. Accessed February 10, 2012, 09:53. |