| APA | SCO. (2012, February 14). In Acronym Geek. Retrieved 19:12, February 14, 2012, from http://www.acronymgeek.com/SCO |
| MLA | "SCO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SCO>. |
| MHRA | 'SCO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SCO> [accessed 14 February 2012] |
| Chicago | "SCO", http://www.acronymgeek.com/SCO (accessed February 14, 2012). |
| CBE/CSE | SCO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SCO. |
| Bluebook | SCO, http://www.acronymgeek.com/SCO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SCO, http://www.acronymgeek.com/SCO (optional description here) (as of Feb. 14, 2012, 19:12). |
| AMA | SCO. Acronym Geek. February 14, 2012, 19:12. Available at: http://www.acronymgeek.com/SCO. Accessed February 14, 2012, 19:12. |