| APA | OIHM. (2012, February 16). In Acronym Geek. Retrieved 23:58, February 16, 2012, from http://www.acronymgeek.com/OIHM |
| MLA | "OIHM." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OIHM>. |
| MHRA | 'OIHM', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OIHM> [accessed 16 February 2012] |
| Chicago | "OIHM", http://www.acronymgeek.com/OIHM (accessed February 16, 2012). |
| CBE/CSE | OIHM [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OIHM. |
| Bluebook | OIHM, http://www.acronymgeek.com/OIHM (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIHM, http://www.acronymgeek.com/OIHM (optional description here) (as of Feb. 16, 2012, 23:58). |
| AMA | OIHM. Acronym Geek. February 16, 2012, 23:58. Available at: http://www.acronymgeek.com/OIHM. Accessed February 16, 2012, 23:58. |