| APA | MHPO. (2012, February 16). In Acronym Geek. Retrieved 16:39, February 16, 2012, from http://www.acronymgeek.com/MHPO |
| MLA | "MHPO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/MHPO>. |
| MHRA | 'MHPO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/MHPO> [accessed 16 February 2012] |
| Chicago | "MHPO", http://www.acronymgeek.com/MHPO (accessed February 16, 2012). |
| CBE/CSE | MHPO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/MHPO. |
| Bluebook | MHPO, http://www.acronymgeek.com/MHPO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MHPO, http://www.acronymgeek.com/MHPO (optional description here) (as of Feb. 16, 2012, 16:39). |
| AMA | MHPO. Acronym Geek. February 16, 2012, 16:39. Available at: http://www.acronymgeek.com/MHPO. Accessed February 16, 2012, 16:39. |