| APA | MPO. (2012, February 9). In Acronym Geek. Retrieved 19:15, February 9, 2012, from http://www.acronymgeek.com/MPO |
| MLA | "MPO." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/MPO>. |
| MHRA | 'MPO', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/MPO> [accessed 9 February 2012] |
| Chicago | "MPO", http://www.acronymgeek.com/MPO (accessed February 9, 2012). |
| CBE/CSE | MPO [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/MPO. |
| Bluebook | MPO, http://www.acronymgeek.com/MPO (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MPO, http://www.acronymgeek.com/MPO (optional description here) (as of Feb. 9, 2012, 19:15). |
| AMA | MPO. Acronym Geek. February 9, 2012, 19:15. Available at: http://www.acronymgeek.com/MPO. Accessed February 9, 2012, 19:15. |