| APA | MPIO. (2012, February 17). In Acronym Geek. Retrieved 02:28, February 17, 2012, from http://www.acronymgeek.com/MPIO |
| MLA | "MPIO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/MPIO>. |
| MHRA | 'MPIO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/MPIO> [accessed 17 February 2012] |
| Chicago | "MPIO", http://www.acronymgeek.com/MPIO (accessed February 17, 2012). |
| CBE/CSE | MPIO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/MPIO. |
| Bluebook | MPIO, http://www.acronymgeek.com/MPIO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MPIO, http://www.acronymgeek.com/MPIO (optional description here) (as of Feb. 17, 2012, 02:28). |
| AMA | MPIO. Acronym Geek. February 17, 2012, 02:28. Available at: http://www.acronymgeek.com/MPIO. Accessed February 17, 2012, 02:28. |