| APA | OKAR. (2012, February 15). In Acronym Geek. Retrieved 19:22, February 15, 2012, from http://www.acronymgeek.com/OKAR |
| MLA | "OKAR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OKAR>. |
| MHRA | 'OKAR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OKAR> [accessed 15 February 2012] |
| Chicago | "OKAR", http://www.acronymgeek.com/OKAR (accessed February 15, 2012). |
| CBE/CSE | OKAR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OKAR. |
| Bluebook | OKAR, http://www.acronymgeek.com/OKAR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OKAR, http://www.acronymgeek.com/OKAR (optional description here) (as of Feb. 15, 2012, 19:22). |
| AMA | OKAR. Acronym Geek. February 15, 2012, 19:22. Available at: http://www.acronymgeek.com/OKAR. Accessed February 15, 2012, 19:22. |