| APA | MSO. (2012, February 14). In Acronym Geek. Retrieved 02:21, February 14, 2012, from http://www.acronymgeek.com/MSO |
| MLA | "MSO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/MSO>. |
| MHRA | 'MSO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/MSO> [accessed 14 February 2012] |
| Chicago | "MSO", http://www.acronymgeek.com/MSO (accessed February 14, 2012). |
| CBE/CSE | MSO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/MSO. |
| Bluebook | MSO, http://www.acronymgeek.com/MSO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MSO, http://www.acronymgeek.com/MSO (optional description here) (as of Feb. 14, 2012, 02:21). |
| AMA | MSO. Acronym Geek. February 14, 2012, 02:21. Available at: http://www.acronymgeek.com/MSO. Accessed February 14, 2012, 02:21. |