| APA | OF. (2012, February 9). In Acronym Geek. Retrieved 17:55, February 9, 2012, from http://www.acronymgeek.com/OF |
| MLA | "OF." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/OF>. |
| MHRA | 'OF', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/OF> [accessed 9 February 2012] |
| Chicago | "OF", http://www.acronymgeek.com/OF (accessed February 9, 2012). |
| CBE/CSE | OF [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/OF. |
| Bluebook | OF, http://www.acronymgeek.com/OF (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OF, http://www.acronymgeek.com/OF (optional description here) (as of Feb. 9, 2012, 17:55). |
| AMA | OF. Acronym Geek. February 9, 2012, 17:55. Available at: http://www.acronymgeek.com/OF. Accessed February 9, 2012, 17:55. |