| APA | PMSO. (2012, February 15). In Acronym Geek. Retrieved 13:35, February 15, 2012, from http://www.acronymgeek.com/PMSO |
| MLA | "PMSO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PMSO>. |
| MHRA | 'PMSO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PMSO> [accessed 15 February 2012] |
| Chicago | "PMSO", http://www.acronymgeek.com/PMSO (accessed February 15, 2012). |
| CBE/CSE | PMSO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PMSO. |
| Bluebook | PMSO, http://www.acronymgeek.com/PMSO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PMSO, http://www.acronymgeek.com/PMSO (optional description here) (as of Feb. 15, 2012, 13:35). |
| AMA | PMSO. Acronym Geek. February 15, 2012, 13:35. Available at: http://www.acronymgeek.com/PMSO. Accessed February 15, 2012, 13:35. |