| APA | HIOM. (2012, February 17). In Acronym Geek. Retrieved 01:49, February 17, 2012, from http://www.acronymgeek.com/HIOM |
| MLA | "HIOM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HIOM>. |
| MHRA | 'HIOM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HIOM> [accessed 17 February 2012] |
| Chicago | "HIOM", http://www.acronymgeek.com/HIOM (accessed February 17, 2012). |
| CBE/CSE | HIOM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HIOM. |
| Bluebook | HIOM, http://www.acronymgeek.com/HIOM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HIOM, http://www.acronymgeek.com/HIOM (optional description here) (as of Feb. 17, 2012, 01:49). |
| AMA | HIOM. Acronym Geek. February 17, 2012, 01:49. Available at: http://www.acronymgeek.com/HIOM. Accessed February 17, 2012, 01:49. |