| APA | OFRK. (2012, February 16). In Acronym Geek. Retrieved 23:14, February 16, 2012, from http://www.acronymgeek.com/OFRK |
| MLA | "OFRK." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OFRK>. |
| MHRA | 'OFRK', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OFRK> [accessed 16 February 2012] |
| Chicago | "OFRK", http://www.acronymgeek.com/OFRK (accessed February 16, 2012). |
| CBE/CSE | OFRK [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OFRK. |
| Bluebook | OFRK, http://www.acronymgeek.com/OFRK (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OFRK, http://www.acronymgeek.com/OFRK (optional description here) (as of Feb. 16, 2012, 23:14). |
| AMA | OFRK. Acronym Geek. February 16, 2012, 23:14. Available at: http://www.acronymgeek.com/OFRK. Accessed February 16, 2012, 23:14. |