| APA | OH. (2012, February 9). In Acronym Geek. Retrieved 14:03, February 9, 2012, from http://www.acronymgeek.com/OH |
| MLA | "OH." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/OH>. |
| MHRA | 'OH', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/OH> [accessed 9 February 2012] |
| Chicago | "OH", http://www.acronymgeek.com/OH (accessed February 9, 2012). |
| CBE/CSE | OH [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/OH. |
| Bluebook | OH, http://www.acronymgeek.com/OH (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OH, http://www.acronymgeek.com/OH (optional description here) (as of Feb. 9, 2012, 14:03). |
| AMA | OH. Acronym Geek. February 9, 2012, 14:03. Available at: http://www.acronymgeek.com/OH. Accessed February 9, 2012, 14:03. |