| APA | OHF. (2012, February 14). In Acronym Geek. Retrieved 10:14, February 14, 2012, from http://www.acronymgeek.com/OHF |
| MLA | "OHF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OHF>. |
| MHRA | 'OHF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OHF> [accessed 14 February 2012] |
| Chicago | "OHF", http://www.acronymgeek.com/OHF (accessed February 14, 2012). |
| CBE/CSE | OHF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OHF. |
| Bluebook | OHF, http://www.acronymgeek.com/OHF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OHF, http://www.acronymgeek.com/OHF (optional description here) (as of Feb. 14, 2012, 10:14). |
| AMA | OHF. Acronym Geek. February 14, 2012, 10:14. Available at: http://www.acronymgeek.com/OHF. Accessed February 14, 2012, 10:14. |