| APA | MRHO. (2012, February 16). In Acronym Geek. Retrieved 16:24, February 16, 2012, from http://www.acronymgeek.com/MRHO |
| MLA | "MRHO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/MRHO>. |
| MHRA | 'MRHO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/MRHO> [accessed 16 February 2012] |
| Chicago | "MRHO", http://www.acronymgeek.com/MRHO (accessed February 16, 2012). |
| CBE/CSE | MRHO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/MRHO. |
| Bluebook | MRHO, http://www.acronymgeek.com/MRHO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MRHO, http://www.acronymgeek.com/MRHO (optional description here) (as of Feb. 16, 2012, 16:24). |
| AMA | MRHO. Acronym Geek. February 16, 2012, 16:24. Available at: http://www.acronymgeek.com/MRHO. Accessed February 16, 2012, 16:24. |